ۥ- 1@	    -             F *[                 A                                , ! , !M   M   M   M   M  N .HU   HU   HU   HU  U  V HU   X ] 
Y  Y Z   Z   Z   Z   Z   Z   Z  Z   Z   Z   Z   Z   Z  Z 4 Z 5 Z   M         Z   Z      o                                                           

AT Command Reference Manualfor the RC288ACL/VFC and RC288ACi/VFC Modem Families(Preliminary)

Rockwell InternationalDigital Communications Division
1994, Rockwell International	Order No. 1034All Rights Reserved	February 7, 1994Printed in U.S.A.
NOTICE
Information furnished by Rockwell International Corporation is believed to be accurate and reliable. However, no responsibility is assumed by Rockwell International for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Rockwell International other than for circuitry embodied in Rockwell products. Rockwell International reserves the right to change circuitry at any time without notice. This document is subject to change without notice.

ConfiguACE is a trademark of Rockwell International.MNP is a registered trademark of Microcom, Inc. Hayes is a registered trademark of Hayes Microcomputer Products, Inc.

Table of Contents
1.	INTRODUCTION	1-1
1.1.	OVERVIEW	1-1
1.1.1.	Command Syntax	1-1
1.1.2.	Command Descriptions	1-1
1.1.3.	Call Progress and Blacklisting Parameters	1-1
1.1.4.	ConfigurACE II	1-1
1.2.	REFERENCE DOCUMENTATION	1-1
2.	COMMAND SYNTAX	2-1
2.1.	DTE/DCE INTERCHANGE CIRCUITS	2-1
2.2.	COMMAND SYNTAX AND GUIDELINES	2-1
2.2.1.	DTE Commands	2-1
2.2.2.	DTE Command Lines	2-1
2.3.	AT COMMAND GUIDELINES	2-1
2.3.1.	Basic Command Syntax	2-1
2.3.2.	Extended Command Syntax	2-1
3.	AT COMMAND SET	3-1
3.1.	AT COMMAND GUIDELINES	3-1
3.1.1.	AT Commands, DTE Adaption	3-1
3.1.2.	AT Command Format	3-1
3.1.3.	Escape Code Sequence	3-2
3.2.	AT COMMAND SET	3-3
3.2.1.	AT Commands	3-3
A/ - Re-execute Command	3-3
AT= x - Write to Selected S-Register	3-3
AT? - Read Selected S-Register	3-3
A - Answer	3-3
Bn - CCITT or Bell	3-3
Cn - Carrier Control	3-4
Dn - Dial	3-4
En - Command Echo	3-5
Fn - Select Line Modulation	3-5
Hn - Disconnect (Hang-Up)	3-7
In - Identification	3-7
Ln - Speaker Volume	3-8
Mn - Speaker Control	3-8
Nn - Automode Enable	3-8
On - Return to On-Line Data Mode	3-8
P - Set Pulse Dial Default	3-9
Qn - Quiet Results Codes Control	3-9
Sn - Read/Write S-Register	3-9
T - Set Tone Dial Default	3-10
Vn - Result Code Form	3-10
Wn - Error Correction Message Control.	3-10
Xn - Extended Result Codes	3-11
Yn - Long Space Disconnect	3-13
Zn - Soft Reset and Restore Profile	3-13
3.2.2.	AT& Commands	3-13
&Cn - RLSD (DCD) Option	3-13
&Dn - DTR Option	3-14
&Fn - Restore Factory Configuration (Profile)	3-14
&Gn - Select Guard Tone	3-14
&Jn - Telephone Jack Control	3-15
&Kn - Flow Control	3-15
&Ln - Leased Line Operation	3-15
&Mn - Asynchronous/Synchronous Mode Selection	3-16
&Pn - Select Pulse Dial Make/Break Ratio	3-16
&Qn - Sync/Async Mode	3-17
&Rn - RTS/CTS Option	3-18
&Sn - DSR Override	3-18
&Tn - Test and Diagnostics	3-18
&V - Display Current Configuration and Stored Profiles	3-19
&Wn - Store Current Configuration	3-19
&Xn - Select Synchronous Clock Source	3-20
&Yn - Designate a Default Reset Profile	3-20
&Zn=x - Store telephone number	3-20
3.2.3.	AT% Commands	3-20
%En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward	3-20
%L - Line Signal Level	3-21
%Q - Line Signal Quality	3-21
%T - PTT Testing Utilities	3-21
3.2.4.	AT\ Commands	3-23
\Gn - Modem-to-Modem Flow Control (XON/XOFF)	3-23
\Kn - Break Control	3-23
\Nn - Operating Mode	3-24
3.2.5.	AT*Commands	3-24
*F - Download to Flash Memory	3-24
3.3.	ERROR DETECTION AND DATA COMPRESSION COMMANDS	3-25
3.3.1.	AT% Commands	3-25
%C - Enable/Disable Data Compression	3-25
3.3.2.	AT\ Commands	3-25
\An - Select Maximum MNP Block Size	3-25
\Bn - Transmit Break to Remote	3-25
\Ln - MNP Block/Stream Mode Select	3-26
3.4.	MNP 10 COMMANDS	3-27
3.4.1.	AT) Commands	3-27
3.4.2.	AT- Commands	3-27
*Hn - Link Negotiation Speed	3-27
-Kn - MNP Extended Services	3-27
-Qn - Enable Fallback to V.22 bis/V.22	3-27
@Mn - Initial Cellular Power Level Setting	3-28
:E - Compromise Equalizer Enable Command	3-28
3.5.	W-CLASS COMMANDS	3-29
3.5.1.	AT% Commands	3-29
%Fn - Split-Speed Direction Select	3-29
3.5.2.	AT* Commands	3-29
*B - Display Blacklisted Numbers	3-29
*D - Display Delayed Numbers	3-29
*NCnn - Country Select	3-30
*Zn - Change Dial Codes:	3-31
3.5.3.	AT\ Commands	3-32
\S - Report Active Configuration	3-32
\Wn - Split-Speed Operation	3-32
3.6.	CALLER ID COMMANDS	3-33
3.6.1.	AT#CID Command	3-33
#CIDn - Caller ID	3-33
Inquiries	3-33
Formatted Form Reporting	3-33
Example of Formatted Form Reporting	3-34
Unformatted Form Reporting	3-34
Example of Unformatted Form Reporting	3-34
3.7.	AT COMMAND RESULT CODES	3-35
0- OK	3-35
1- CONNECT	3-35
2- RING	3-35
3- NO CARRIER	3-35
4- ERROR	3-35
5- CONNECT 1200	3-35
6- NO DIALTONE	3-35
7- BUSY	3-36
8- NO ANSWER	3-36
9- CONNECT 0600	3-36
10- CONNECT 2400	3-36
11- CONNECT 4800	3-36
12- CONNECT 9600	3-36
13- CONNECT 7200	3-36
14- CONNECT 12000	3-36
15- CONNECT 14400	3-36
16- CONNECT 19200	3-36
17- CONNECT 38400	3-36
18- CONNECT 57600	3-36
19- CONNECT 115200	3-36
22- CONNECT 75TX/1200RX	3-37
23- CONNECT 1200TX/75RX	3-37
24- DELAYED	3-37
32- BLACKLISTED	3-37
33- FAX	3-37
35- DATA	3-37
40- CARRIER 300	3-37
44- CARRIER 1200/75	3-37
45- CARRIER 75/1200	3-37
46- CARRIER 1200	3-37
47- CARRIER 2400	3-37
48- CARRIER 4800	3-37
49- CARRIER 7200	3-37
50- CARRIER 9600	3-37
51- CARRIER 12000	3-37
52- CARRIER 14400	3-38
53- CARRIER 16800	3-38
54- CARRIER 19200	3-38
55- CARRIER 21600	3-38
56- CARRIER 24000	3-38
57- CARRIER 26400	3-38
58- CARRIER 28800	3-38
59- CONNECT 16800	3-38
61- CONNECT 21600	3-38
62- CONNECT 24000	3-38
63- CONNECT 26400	3-38
64- CONNECT 28800	3-38
66- COMPRESSION: CLASS 5	3-38
67- COMPRESSION: V.42 bis	3-38
69- COMPRESSION: NONE	3-39
70- PROTOCOL: NONE	3-39
77- PROTOCOL: LAPM	3-39
80- PROTOCOL: ALT	3-39
81- PROTOCOL: ALT-CELLULAR	3-39
+FC- FCERROR	3-39
4.	S-REGISTERS	4-1
4.1.	FACTORY DEFAULTS	4-1
4.2.	S-REGISTER DEFINITIONS	4-4
S0 - Number of Rings to Auto-Answer	4-4
S1 - Ring Counter	4-4
S2 - Escape Character	4-4
S3 - Carriage Return Character	4-4
S4 - Line Feed Character	4-4
S5 - Backspace Character	4-4
S6 - Wait Time for Dial Tone Before Blind Dialing, or After W Dial Modifier (W-Class Models)	4-5
S7 - Wait Time For Carrier After Dial, For Silence, or For Dial Tone After W Dial Modifier (US Models)	4-5
S8 - Pause Time For Dial Delay	4-5
S9 - Carrier Detect Response Time	4-5
S10 - Lost Carrier To Hang Up Delay	4-5
S11 - DTMF Tone Duration	4-5
S12 - Escape Prompt Delay (EPD)	4-6
S13 - Reserved	4-6
S14 - General Bit Mapped Options Status	4-6
S15 - Reserved	4-6
S16 - General Bit Mapped Test Options Status	4-7
S17 - Reserved	4-7
S18 - Test Timer	4-7
S19 - AutoSync Options	4-8
S20 - AutoSync HDLC Address or BSC Sync Character	4-8
S21 - V.24/General Bit Mapped Options Status	4-9
S22 - Speaker/Results Bit Mapped Options Status	4-10
S23 - General Bit Mapped Options Status	4-11
S24 - Sleep Inactivity Timer	4-11
S25 - Delay To DTR	4-11
S26 - RTS to CTS Delay	4-11
S27 - Bit Mapped Options Status	4-12
S28 - Bit Mapped Options Status	4-13
S29 - Flash Dial Modifier Time	4-13
S30 - Disconnect Inactivity Timer	4-13
S31 - Bit Mapped Options Status	4-14
S32 - XON Character	4-14
S33 - XOFF Character	4-14
S34-S35 - Reserved	4-14
S36 - LAPM Failure Control	4-14
S37 - Desired Line Connection Speed	4-15
S38 - Delay Before Forced Hang Up	4-16
S39 - Flow Control Bit Mapped Options Status	4-16
S40 - General Bit Mapped Options Status	4-17
S41 - General Bit Mapped Options Status	4-18
S46 - Data Compression Control	4-18
S48 - V.42 Negotiation Action	4-18
S80 - Soft-Switch Functions	4-19
S82 - Break Handling Options	4-19
S86 - Call Failure Reason Code	4-20
S91 - PSTN Transmit Attenuation Level	4-20
S92 - Fax Transmit Attenuation Level	4-20
S95 - Extended Result Codes	4-21
S201 - Cellular Transmit Level	4-21
5.	V.25 BIS COMMAND SET	5-1
5.1.	DTE/DCE INTERCHANGE CIRCUITS	5-1
5.2.	FORMATS FOR COMMANDS AND INDICATIONS	5-1
5.2.1.	Asynchronous Signalling	5-1
Command/Indication Exchange Protocol	5-1
DTE Adaption	5-1
5.2.2.	V.25 bis Escape Detection Scheme	5-2
5.3.	STANDARD V.25 BIS COMMANDS	5-2
CIC - Connect Incoming Call	5-2
CRI - Call Request with Number and Identification	5-2
CRN - Call Request with Number	5-2
CRS - Call Request with Memory Address	5-3
DIC - Disregard Incoming Call	5-3
PRI - Program Identification	5-3
PRN - Program Number	5-3
RLD - List Request of Delayed Call Numbers	5-3
RLF - List Request of Forbidden Numbers	5-4
RLI - List Request of Identification Numbers	5-4
RLN - List Request of Stored Numbers (Dial Strings)	5-4
5.4.	EXTENDED V.25 BIS COMMAND	5-4
CNL - Local Configuration	5-4
5.5.	STANDARD V.25 BIS INDICATIONS	5-5
CFI - Call Failure Indication	5-5
CNX - Connect	5-5
DLC - Delayed Call	5-5
INC - Incoming Call	5-5
INV - Invalid Command	5-5
VAL - Valid Command	5-5
6.	FAX CLASS 1 COMMANDS	6-1
6.1.	FAX I/O PROCESSING	6-1
6.1.1.	DTE-to-Modem Transmit Data Stream	6-1
6.1.2.	Modem-to-DTE Receive Data Stream	6-1
6.1.3.	Fax Mode Selection	6-1
6.1.4.	Fax Origination	6-1
6.1.5.	Fax Answering	6-2
6.1.6.	Fax Control Transmission	6-2
6.1.7.	Fax Control Reception	6-2
6.1.8.	Fax Data Transmission	6-3
6.1.9.	Fax Data Reception	6-3
6.2.	COMMANDS	6-4
+FCLASS=n - Select Service Class	6-4
+F<command>? - Report Active Configuration	6-4
+F<command>=? - Report Operating Capabilities	6-4
+FAE=n - Data/Fax Auto Answer	6-4
+FTS=n - Stop Transmission and Wait	6-4
+FRS=n - Receive Silence	6-4
+FTM=n - Transmit Data	6-5
+FRM=n - Receive Data	6-5
+FTH=n - Transmit Data with HDLC Framing	6-6
+FRH=n - Receive Data with HDLC Framing	6-6
6.3.	EXAMPLES	6-6
7.	FAX CLASS 2 COMMANDS	7-1
7.1.	COMMAND SYNTAX AND GUIDELINES	7-1
7.1.1.	DTE Commands	7-1
DTE Command Lines	7-1
Facsimile Command Syntax	7-1
7.1.2.	Serial Port Speed and Flow Control	7-3
Data Stream Termination	7-3
DTE to DCE Streams	7-3
DCE to DTE Streams	7-3
7.1.3.	Auto Answer	7-3
7.1.4.	Identification of T.30 Options	7-3
7.1.5.	Session Status Reporting	7-4
7.1.6.	Procedure Interrupt Negotiation	7-4
7.2.	SERVICE CLASS 2 IDENTIFICATION AND SELECTION	7-4
7.2.1.	+FMFR?, Request Manufacturer Identification	7-4
7.2.2.	+FMDL?, Identify Product Model	7-4
7.2.3.	+FREV?, Identify Product Revision	7-4
7.3.	SERVICE CLASS 2 ACTION COMMANDS	7-4
7.3.1.	ATD, Originate a Call	7-5
7.3.2.	ATA, Answer a Call	7-5
Manual Call Answer	7-5
Automatic Answer	7-5
Connection as a Data Modem	7-5
7.3.3.	+FDT, Data Transmission	7-6
Initiate Page Transmission	7-6
Continue a Page	7-6
Phase C Data Framing	7-6
Phase C Data Format	7-6
<CAN>, Escape from Transmission	7-6
7.3.4.	+FET, Transmit Page Punctuation	7-8
End a Page	7-8
7.3.5.	+FDR, Begin or Continue Phase C Receive Data	7-9
Initiate Document Reception	7-9
Continue Document Reception	7-10
Phase C Data Framing	7-10
Phase C Data Format	7-10
<CAN>, Escape from Reception	7-10
7.3.6.	+FK, Session Termination	7-10
7.3.7	7-+FCIG, Set Polling ID	7-11
7.3.8+FLPL, Indicate a Document for Polling	7-11
7.3.9	7-+FSPL, Enable Polling	7-11
7.4.	SERVICE CLASS 2 DCE RESPONSES	7-13
7.4.1.	+FCON, Facsimile Connection Response	7-13
7.4.2.	+FDCS:, Report Current Session Capabilities	7-13
7.4.3.	+FDIS:, Report Remote Station Capabilities	7-13
7.4.4.	+FCFR, Indicate Confirmation to Receive	7-13
7.4.5.	+FTSI:, Report the Transmit Station ID	7-13
7.4.6.	+FCSI:, Report the Called Station ID	7-13
7.4.7.	+FPTS:, Receive Page Transfer Status	7-14
7.4.8.	+FET:, Post Page Message Response	7-14
7.4.9.	+FPTS:, Transmit Page Transfer Status	7-14
7.4.10.	+FHNG:, Call Termination with Status	7-14
7.4.11.	+FCIG:, Report the Polled Station ID	7-15
7.4.12.	+FDTC:, Report the Polled Station Capabilities	7-15
7.4.13.	+FPOLL, Indicate Polling Request	7-15
7.5.	SERVICE CLASS 2 PARAMETERS	7-16
7.5.1.	+FDCC, DCE Capabilities Parameters	7-16
7.5.2.	+FDIS, Current Sessions Capabilities Parameters	7-16
7.5.3.	+FDCS, Current Session Results Parameters	7-17
7.5.4.	+FLID=, Local ID String	7-18
7.5.5.	+FCR, Capability to Receive	7-18
7.5.6.	+FPTS=, Page Transfer Status	7-18
7.5.7.	+FCQ, Copy Quality Checking	7-18
7.5.8.	+FPHCTO, DTE Phase C Response Time-out	7-18
7.5.9.	+FAXERR, T.30 Session Error Report	7-19
7.5.10.	+FBOR, Data Bit Order	7-19
7.5.11.	+FAA, Answer Parameter	7-19
7.5.12.	+FBUF?, Buffer Size	7-20
7.6.	EXAMPLE SESSIONS	7-20
A.	AT COMMAND SET SUMMARY	A-1
A.1.	BASIC AT COMMANDS	A-1
A.2.	ECC COMMANDS	A-4
A.3.	MNP 10 COMMANDS	A-4
A.4.	W-CLASS COMMANDS	A-5
A.5.	CALLER ID COMMANDS	A-5
A.6.	V.25 BIS COMMANDS	A-5
A.7.	FAX CLASS 1	A-5
A.8.	FAX CLASS 2	A-6
A.9.	VOICE COMMANDS	A-6
B.	COMMON CONFIGURATION SETUP STRINGS	B-1
1.	INTRODUCTION
1.1.	OVERVIEW
This manual describes the AT commands for the following Rockwell modem families:
	RC288ACL/VFC and RC288ACi/VFC Modem Families
The descriptions apply to all these modems with any differences between modem product families noted.
1.1.1.	Command Syntax
The fundamental DTE interface command syntax is described in Section 2.
1.1.2.	Command Descriptions
These commands are grouped into the following categories:
	AT commands	Section 3	S-Registers	Section 4	V.25 commands	Section 5	Fax Class 1 commands	Section 6	Fax Class 2 commands	Section 7
The AT commands are implemented in microcontroller (MCU) firmware for specific modem models. The support for a command category is identified by modem model in the modem designer's guide. Additional configuration and implementation information is available in release notes and/or readme files that accompany MCU firmware release.
1.1.3.	Call Progress and Blacklisting Parameters
The modem MCU firmware may be provided either in reconfigurable form or preconfigured form. Consult the specific firmware release notes for exact configuration information.
Reconfigurable Form. The modem MCU firmware can be configured for operation in specific countries by the PC-compatible ConfigurACE II program. The call progress and blacklisting parameters described the ConfigurACE II User's Manual can be altered and loaded for a number of countries by this program. 
Preconfigured Form. Specific MCU firmware configurations may be released that can be directly installed without requiring the use of ConfigurACE II.
1.1.4.	ConfigurACE II
The ConfigurACE II User's Manual describes the use of ConfigurACE II and the country modifiable parameters. Consult any readme files accompanying the ConfigurACEII program for additional or later information.
1.2.	REFERENCE DOCUMENTATION
	Order No.	Description
	MD113	RC288ACL/VFC and RC288ACi/VFC Modem Data Sheet	898	RC288ACL/VFC and RC288ACi/VFC Modem Designer's Guide	893	ConfigurACE II User's Manual
This page is intentionally blank.
2.	COMMAND SYNTAX
2.1.	DTE/DCE INTERCHANGE CIRCUITS
Communication between the DTE and modem is half duplex (i.e., only one entity 'talks' at a time).
2.2.	COMMAND SYNTAX AND GUIDELINES
2.2.1.	DTE Commands
The ISO 646 character set (CCITT T.50 International Alphabet 5, American Standard Code for Information Interchange) is used for the issuance of commands and responses. Only the low-order 7 bits of each character are used for commands or parameters; the high-order bit is ignored. Upper case characters are equivalent to lower case characters.
2.2.2.	DTE Command Lines
A command line is a string of characters sent from a DTE to the DCE while the DCE is in a command state. Command lines have a prefix, a body, and a terminator. The prefix consists of the ASCII characters AT (065, 084) or at (097, 116). The body is a string of commands restricted to printable ASCII characters (032 - 126). Space characters (ASCII 032) and control characters other than carriage return <CR> (default value = ASCII 013 = 0Dh, see register S3), backspace <BS> (default value = ASCII 008 = 08h, see register S5), and cancel <cntrl-x> (ASCII 024 = 18h) in the command string are ignored. The default terminator is the <CR> character. Characters that precede the AT prefix are ignored.
2.3.	AT COMMAND GUIDELINES
Modem operation is controlled by generic AT commands. These AT commands may be basic AT (i.e., commands preceded by AT, AT&, AT%, AT*, AT\, AT), AT-, or AT#), S-Register (e.g., S6=n), V.25 bis (e.g., CIC), Fax class 1 (e.g., +FTM), Fax class 2 (e.g., +FDCS:), or voice (e.g., #VBS) commands. The command syntax and operation guidelines governing each of these command categories are described in subsequent sections.
2.3.1.	Basic Command Syntax
Characters within the command line are parsed as commands with associated parameter values. The basic commands consist of single ASCII characters, or single characters preceded by a prefix character, followed by a decimal parameter (e.g., &D1"). Missing decimal parameters are evaluated as 0. 
2.3.2.	Extended Command Syntax
The facsimile commands use extended syntax. They are preceded by the +F characters, and they are terminated by the semicolon : character (ASCII 059) or by the <CR> that terminates the command line.
This page is intentionally blank.
3.	AT COMMAND SET
3.1.	AT COMMAND GUIDELINES
The basic AT commands used to control modem operation are defined in this section. These commands are summarized in Appendix A. All these commands may not be available in a specific product depending upon supported data rates and modes. The default values are typical of a fully configured modem supporting all data rates and options. The actual default value is dependent upon modem firmware as defined by the firmware release notes. 
3.1.1.	AT Commands, DTE Adaption
Under AT operation, the serial interfaced modem performs an autobaud/autoparity/autolength function on each AT header entered. The autolength/autoparity facility can detect 7- or 8-bit characters of even, odd, or no parity with one stop bit. This is not necessary for the parallel interfaced modem since it has direct access to the UART registers.
3.1.2.	AT Command Format
A command line is a string of characters sent from a DTE to the modem (DCE) while the modem is in a command state. A command line has a prefix, a body, and a terminator. Each command line (with the exception of the A/ command) must begin with the character sequence AT and must be terminated by a carriage return. Commands entered in upper case or lower case are accepted, but both the A and T must be of the same case, i.e., "AT" = ASCII 065, 084 or at = ASCII 097, 116. The body is a string of commands restricted to printable ASCII characters (032 - 126). Space characters (ASCII 032) and control characters other than CR (ASCII 013) and BS (ASCII 010) in the command string are ignored. The default terminator is the ASCII <CR> character. Characters that precede the AT prefix are ignored. The command line interpretation begins upon receipt of the carriage return character.
Characters within the command line are parsed as commands with associated parameter values. The basic commands consist of single ASCII characters, or single characters preceded by a prefix character (e.g., &"), followed by a decimal parameter. Missing decimal parameters are evaluated as 0. 
The modem supports the editing of command lines by recognizing a backspace character. When modem echo is enabled, the modem responds to receipt of a backspace or delete by echoing a backspace character, a space character, and another backspace. The hex value to be used for the backspace character is programmable through register S5. Values equal to 0 or greater than 127, or the value which corresponds to the carriage return character, cannot be used for the backspace character. This editing is not applicable to the AT header of a command. A command line may be aborted at any time by entering < cntrl-x > (18h).
The AT sequence may be followed by any number of commands in sequence, except for commands such as Z, D, or A. Commands following commands Z, D, or A on the same command line will be ignored. The maximum number of characters on any command line is 39 (including "A" and "T"). If a syntax error is found anywhere in a command line command, the remainder of the line will be ignored and the ERROR result code will be returned.
Most commands entered with parameters out of range will not be accepted and the ERROR response will be returned to the DTE.
Commands will only be accepted by the modem once the previous command has been fully executed, which is normally indicated by the return of an appropriate result code. Execution of commands D and A, either as a result of a direct command or a re-execute command, will be aborted if another character is entered before completion of the handshake.
3.1.3.	Escape Code Sequence
When the modem has established a connection and has entered on-line data mode, it is possible to break into the data transmission in order to issue further commands to the modem in an on-line command mode. This is achieved by the DTE sending to the modem a sequence of three ASCII characters specified by register S2. The default character is '+'. The timing of the three characters must comply with specific time constraints. There is a guard time before the first character (the pre-sequence time), a guard time following the third character (the post-sequence time), and a guard time-out between the first and second characters and between the second and third characters (the inter-character time). These times are controlled by the value recorded in register S12.
3.2.	AT COMMAND SET
The modem will respond to the commands detailed below. Parameters applicable to each command are listed with the command description. The defaults shown for each configuration command are those used in the Rockwell factory profile0.
3.2.1.	AT Commands
A/ - Re-execute Command
The modem behaves as though the last command line had been re-sent by the DTE. "A/" will repeat all the commands in the command buffer.
The principal application of this command is to place another call (using the Dial command) that failed to connect due to a busy line, no answer, or a wrong number. This command must appear alone on a command line. This command should not be terminated by a carriage return.
AT= x - Write to Selected S-Register
This command writes the value x to the currently selected S-Register. An S-Register can be selected by using the ATSn command. All of the S-Registers will return the OK response if x is a number. Some registers may not be written due to country specific PTT limitations.
Result Codes
OK	For all arguments.
AT? - Read Selected S-Register
This command reads and displays the selected S-Register. An S-Register can be selected by using the ATSn command.
Result Codes:
OK	For all arguments.
A - Answer
The modem will go off-hook and attempt to answer an incoming call if correct conditions are met. Upon successful completion of answer handshake, the modem will go on-line in answer mode. This command may be affected by the state of Line Current Sense, if enabled. (Most countries do not require Line Current Sense.) Operation is also dependent upon +FCLASS command and country-specific requirements.
If +FCLASS=0 is selected, the modem will enter the connect state after exchanging carrier with the remote modem. If no carrier is detected within a period specified in register S7, the modem hangs up. Any character entered during the connect sequence will abort the connection attempt.
If +FCLASS=1 or 2 is selected, the modem will go off-hook in V.21 answer mode. It will generate the V.21 2100 Hz answer tone for 3  0.5 seconds and, following a delay of 70 ms, will proceed as if the +FTH=3 command were issued. At any stage up to (but excluding) the +FTH=3 command state, any character will abort the communication. (See the description of the +FTH command for details.)
Bn - CCITT or Bell
When the modem is configured to allow either option, the modem will select Bell or CCITT modulation for a line speed connection of 300 or 1200 bps according to the parameter supplied. Any other line speed will use a CCITT modulation standard. The parameter value, if valid, is written to S27 bit 6. (Also, see ATFn command.)
B0	Selects CCITT operation at 300 or 1200 bps during Call Establishment and a subsequent connection. (Default for W-class models.)
B1	Selects BELL operation at 300 or 1200 bps during Call Establishment and a subsequent connection. (Default for US models.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
Cn - Carrier Control
This command is included for compatibility only, and has no effect other than returning a result code. The only valid parameter is 1.
Result Codes:
OK	n = 1.
ERROR	Otherwise.
Dn - Dial
This command directs the modem to go on-line, dial according to the string entered and attempt to establish a connection. If no dial string is supplied, the modem will go on-line and attempt the handshake in originate mode. In W-class models, the action of going off-hook is affected by the status of the Line Current Sense input, if line current sensing is enabled, and by the blacklist and delayed list. NOTE: If the ATD command is issued before the S1 register has cleared, the modem will respond with the NO CARRIER result code.
If +FCLASS=0 is selected, the modem will behave as a data modem and will attempt to connect to another data modem. The modem will have up to the period of time specified by register S6 or S7 to wait for carrier and complete the handshake. If this time expires before the modem can complete the handshake, the modem will go on-hook with the NO CARRIER response. This command will be aborted in progress upon receipt of any DTE character before completion of the handshake.
If +FCLASS=1 or 2 is selected, the modem will behave as a facsimile modem and attempt to connect to a facsimile machine (or modem) by entering the HDLC V.21 channel 2 receive state (as if +FRH=3 had been issued). This command will be aborted upon receipt of any DTE character if the modem has not finished dialing. In this case, the modem will go on-hook and return to command mode after displaying the NO CARRIER message. If the modem has finished dialing, it proceeds as if the +FRH=3 command has been issued. (Refer to the +FRH command to determine how the modem behaves following this stage.)
Dial Modifiers. The valid dial string parameters are described below. Punctuation characters may be used for clarity, with parentheses, hyphen, and spaces being ignored.
0-9	DTMF digits 0 to 9.
*	The 'star' digit (tone dialing only).
#	The 'gate' digit (tone dialing only).
A-D	DTMF digits A, B, C, and D. Some countries may prohibit sending of these digits during dialing.
J	Perform MNP 10 link negotiation at 1200 bps (for this call only). (See *H.)
K	Enable power level adjustment during MNP 10 link negotiation (for this call only). (See )Mn.)
L	Re-dial last number: the modem will re-dial the last valid telephone number. The L must be immediately after the D with all the following characters ignored).
P	Select pulse dialing: pulse dial the numbers that follow until a "T" is encountered. Affects current and subsequent dialing. Some countries prevent changing dialing modes after the first digit is dialed.
T	Select tone dialing: tone dial the numbers that follow until a "P" is encountered. Affects current and subsequent dialing. Some countries prevent changing dialing modes after the first digit is dialed.
R	This command will be accepted, but not acted on.
S=n	Dial the number stored in the directory (n = 0 to 3). (See &Z.)
!	Flash: the modem will go on-hook for a time defined by the value of S29. Country requirements may limit the time imposed.
W	Wait for dial tone: the modem will wait for dial tone before dialing the digits following "W". If dial tone is not detected within the time specified by S7 (US models) or S6 (W-class models), the modem will abort the rest of the sequence, return on-hook, and generate an error message.
@	Wait for silence: the modem will wait for at least 5 seconds of silence in the call progress frequency band before continuing with the next dial string parameter. If the modem does not detect these 5 seconds of silence before the expiration of the call abort timer (S7), the modem will terminate the call attempt with a NO ANSWER message. If busy detection is enabled, the modem may terminate the call with the BUSY result code. If answer tone arrives during execution of this parameter, the modem handshakes.
&	Wait for AT&T "bong" tone for credit card dialing before continuing with the dial string. If bong is not detected within the time specified by S7 (US models) or S6 (W-class models), the modem will abort the rest of the sequence, return on-hook, and generate an error message.
,	Dial pause: the modem will pause for a time specified by S8 before dialing the digits following ",".
;	Return to command state. Added to the end of a dial string, this causes the modem to return to the command state after it processes the portion of the dial string preceding the ";". This allows the user to issue additional AT commands while remaining off-hook. The additional AT commands may be placed in the original command line following the ";" and/or may be entered on subsequent command lines. The modem will enter call progress only after an additional dial command is issued without the ";" terminator. Use "H" to abort the dial in progress, and go back on-hook.
^	Toggles calling tone enable/disable: applicable to current dial attempt only.
( )	Ignored: may be used to format the dial string.
-	Ignored: may be used to format the dial string.
<space>	Ignored: may be used to format the dial string.
<i>	Invalid character: will be ignored.
>	If enabled by country specific parameter, the modem will generate a grounding pulse on the EARTH relay output.
En - Command Echo
The modem enables or disables the echo of characters to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 1.
E0	Disables command echo.
E1	Enables command echo. (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
Fn - Select Line Modulation
This command selects the line modulation according to the parameter supplied. The line modulation is fixed unless Automode is selected. This command interacts with the S37 and the N command. The parameter value, if valid, is written to S37 bits 0-4. To select line modulation, it is recommended that either the F command, or a combination of the S37 and the N command, be used, but not both. 
F0	Selects auto-detect mode. Sets N1 and sets S31 bit 1. In this mode, the modem configures for Automode operation. All connect speeds supported by the modem are possible according to the remote modem's preference. The contents of S37 are ignored as is the sensed DTE speed.
F1	Selects V.21 or Bell 103 according to the B setting as the only acceptable line speed resulting in a subsequent connection. Sets N0, sets S37 to 1, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=1.
F2	Not supported. 
F3	Selects V.23 as the only acceptable line modulation for a subsequent connection. Originator is at 75 bps and answerer is at 1200 bps. Sets N0, sets S37 to 7, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=7.
F4	Selects V.22 1200 or Bell 212A according to the B command setting as the only acceptable line speed for a subsequent connection. Sets N0, sets S37 to 5, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=5.
F5	Selects V.22 bis as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 6, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=6.
F6	Select V.32 bis 4800 or V.32 4800 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 8, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=8.
F7	Selects V.32 bis 7200 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 12, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=12.
	This setting also allows connection at the Rockwell proprietary 7200 V.32 speed, e.g., with a RC9696/12 based modem.
F8	Selects V.32 bis 9600 or V.32 9600 as the only acceptable line modulations for a subsequent connection. Sets N0, sets S37 to 9, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=9.
F9	Selects V.32 bis 12000 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 10, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=10.
	This setting also allows connection at the Rockwell proprietary 12000 V.32 speed, e.g., with a RC9696/12 based modem.
F10	Selects V.32 bis 14400 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 11, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=11.
F13	Selects V.FC 14400 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 15, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=15.
F14	Selects V.FC 16800 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 16, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=16.
F15	Selects V.FC 19200 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 17, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=17.
F16	Selects V.FC 21600 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 18, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=18.
F17	Selects V.FC 24000 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 19, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=19.
F18	Selects V.FC 26400 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 20, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=20.
F19	Selects V.FC 28800 as the only acceptable line modulation for a subsequent connection. Sets N0, sets S37 to 21, and clears S31 bit 1. This command is equivalent to the command string: ATN0S37=21.
Hn - Disconnect (Hang-Up)
This command initiates a hang up sequence.
This command may not be available for some countries due to PTT restrictions.
H0	The modem will release the line if the modem is currently on-line, and will terminate any test (AT&T) that is in progress. Country specific, modulation specific, and error correction protocol specific (S38) processing is handled outside of the H0 command.
H1	If on-hook, the modem will go off-hook and enter command mode. For US models, the modem will remain off-hook. For W-class models, the modem will return on-hook after a period of time determined by S7.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
In - Identification
The modem reports to the DTE the requested result according to the command parameter.
I0	Reports product code (e.g., "28800").
I1	Reports a precomputed checksum (see firmware release notes).
I2	Reports "OK".
I3	Reports firmware revision (VX.XXX)-model code (A = 64K US, C = 128K US, D = 128K W-Class), interface type (S = serial; P = parallel), and MCU model (39 = L39) (e.g.,"V1.297-CS39").
I4	Reports OEM defined identifier string (e.g., "RC288ACL/VFC") in either Hayes-compatible binary format (default) or ASCII format (selectable by ConfigureACE). 
I5	Reports Country Code parameter (e.g., "022").
I6	Reports modem data pump model and internal code revision (e.g, RC288DPL/VFC Rev CE).
I7	Reports the DAA code resulting from MCU interrogation of the DAA for auto DAA recognition (world-class models only) (e.g., 000 for US or Canada, 016 for Japan, 033 for Belgium, 034 for Finland, 035 for France, 037 for Italy, 038 for Netherlands, 039 for Sweden, 040 for Switzerland, and 041 for UK).
Result Codes:
OK	n = 0 to 6.
ERROR	Otherwise.
Ln - Speaker Volume
The modem sets the speaker volume control according to the parameter supplied. The parameter value, if valid, is written to S22 bits 0 and 1.
L0	Low volume.
L1	Low volume. (Default.)
L2	Medium volume.
L3	High volume.
Result Codes:
OK	n = 0 to 3.
ERROR	Otherwise.
Mn - Speaker Control
This command selects when the speaker will be on or off. The parameter value, if valid, is written to S22 bits 2 and 3.
M0	Speaker is always off.
M1	Speaker is on during call establishment, but off when receiving carrier. (Default.)
M2	Speaker is always on.
M3	Speaker is off when receiving carrier and during dialing, but on during answering.
Result Codes:
OK	n = 0 to 3.
ERROR	Otherwise.
Nn - Automode Enable
This command enables or disables Automode detection. The parameter value, if valid, is written to S31 bit 1.
N0	Automode detection is disabled. A subsequent handshake will be conducted according to the contents of S37 or, if S37 is zero, according to the most recently sensed DTE speed.
N1	Automode detection is enabled. A subsequent handshake will be conducted according to the Automode algorithm supported by the modem. This command is equivalent to F0. (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
On - Return to On-Line Data Mode
This command determines how the modem will enter the on-line data mode. If the modem is in the on-line command mode, the enters the on-line data mode with or without a retrain. If the modem is in the off-line command mode (no connection), ERROR is reported.
O0	Enters on-line data mode without a retrain. Handling is determined by the Call Establishment task. Generally, if a connection exists, this command connects the DTE back to the remote modem after an escape (+++).
O1	Enters on-line data mode with a retrain before returning to on-line data mode.
Result Codes:
OK	n = 0 or 1 and a connection exists.
ERROR	Otherwise or if not connected.
P - Set Pulse Dial Default
This command forces pulse dialing until the next T dial modifier or T command is received. Sets S14 bit 5.
As soon as a dial command is executed which explicitly specifies the dialing mode for that particular call (e.g., ATDT...), this command is overridden so that all future dialing will be tone dialed. (See T command.)
This command may not be permitted in some countries.
Result Code:
OK
Qn - Quiet Results Codes Control
The command enables or disables the sending of result codes to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 2.
Q0	Enables result codes to the DTE. (Default.)
Q1	Disables result codes to the DTE.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
Sn - Read/Write S-Register
The modem selects an S-Register, performs an S-Register read or write function, or reports the value of an S-Register.
n	Establishes S-Register n as the last register accessed.
n=v	Sets S-Register n to the value v.
n?	Reports the value of S-Register n.
The parameter n can be omitted, in which case the last S-Register accessed will be assumed. The S can be omitted for AT= and AT?, in which case the last S-Register accessed will be assumed.
For example:
	ATS7 establishes S7 as the last accessed register.
	AT=40 sets the contents of the last register accessed to 40.
	ATS=20 sets the contents of the last register accessed to 20.
If the number "n" is beyond the range of the S-Registers available, the modem will return the ERROR message. The value "v" is "MOD"ed with 256. If the result is outside the range permitted for a given S-Register the values will still be stored, but functionally the lower and higher limits will be observed. Input and output are always in decimal format. Note that some S-Registers are read-only.
In some cases, writing to the S-Register will appear to be accepted but the value will not actually be written.
Due to country restrictions, some commands will be accepted, but the value may be limited and replaced by a maximum or minimum value.
Minimum, maximum, and default values for S-Registers may be altered with ConfigurACE.
T - Set Tone Dial Default
This command forces DTMF dialing until the next P dial modifier or P command is received. The modem will set an S-Register bit to indicate that all subsequent dialing should be conducted in tone mode. Note that the DP command will override this command. Clears S14 bit 5.
This command may not be permitted in some countries. (See P.)
Result Code:
OK
Vn - Result Code Form
This command selects the sending of short-form or long-form result codes to the DTE. The parameter, if valid, is written to S14 bit 3.
V0	Enables short-form (terse) result codes. Line feed is not issued before a short-form result code.
V1	Enables long-form (verbose) result codes. (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
Wn - Connect Message Control
This command controls the format of CONNECT messages. The parameter value, if valid, is written to S31 bits 2 and 3. Note that the Wn command can be overridden by register S95 bits (see S95 description).
W0	Upon connection, the modem reports only the DTE speed (e.g., CONNECT 9600). Subsequent responses are disabled. (Default.)
W1	Upon connection, the modem reports the line speed, the error correction protocol, and the DTE speed, respectively. Subsequent responses are disabled.
W2	Upon connection, the modem reports the DCE speed (e.g., CARRIER 9600). Subsequent responses are disabled.
Result Codes:
OK	n = 0, 1, or 2.
ERROR	Otherwise.
Xn - Extended Result Codes:
This command selects which subset of the result messages will be used by the modem to inform the DTE of the results of commands.
Blind dialing is enabled or disabled by country parameters. If the user wishes to enforce dial tone detection, a "W" can be placed in the dial string (see D command). Note that the information below is based upon the default implementation of the X results table. Table 3-1 indicates the messages which are enabled for each X value.
If the modem is in facsimile mode (+FCLASS=1 or 2), the only message sent to indicate a connection is CONNECT without a speed indication.
X0	Disables monitoring of busy tones unless forced otherwise by country requirements; send only OK, CONNECT, RING, NO CARRIER, ERROR, and NO ANSWER result codes. Blind dialing is enabled/disabled by country parameters. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported. If dial tone detection is enforced or selected and dial tone is not detected, NO CARRIER will be reported instead of NO DIAL TONE. The value 000b is written to S22 bits 6, 5, and 4, respectively.
X1	Disables monitoring of busy tones unless forced otherwise by country requirements; send only OK, CONNECT, RING, NO CARRIER, ERROR, NO ANSWER, and CONNECT XXXX (XXXX = rate). Blind dialing enabled/disabled by country parameters. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported instead of BUSY. If dial tone detection is enforced or selected and dial tone is not detected, NO CARRIER will be reported instead of NO DIAL TONE. The value 100b is written to S22 bits 6, 5, and 4, respectively.
X2	Disables monitoring of busy tones unless forced otherwise by country requirements; send only OK, CONNECT, RING, NO CARRIER, ERROR, NO DIALTONE, NO ANSWER, and CONNECT XXXX. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported instead of BUSY. If dial tone detection is enforced or selected and dial tone is not detected, NO DIAL TONE will be reported instead of NO CARRIER. The value 101b is written to S22 bits 6, 5, and 4, respectively.
X3	Enables monitoring of busy tones; send only OK, CONNECT, RING, NO CARRIER, ERROR, NO ANSWER, and CONNECT XXXX. Blind dialing is enabled/disabled by country parameters. If dial tone detection is enforced and dial tone is not detected, NO CARRIER will be reported. The value 110b is written to S22 bits 6, 5, and 4, respectively.
X4	Enables monitoring of busy tones; send all messages. The value 111b is written to S22 bits 6, 5, and 4, respectively. (Default.)
Result Codes:
OK	n = 0 to 4.
ERROR	Otherwise.
Table 3-1.  Result Codes
Short Form
Long Form
n Value in ATXn Command







0
1
2
3
4

0
OK
x
x
x 
x 
x 

1
CONNECT
x
x 
x 
x
x

2
RING 
x
x 
x 
x
x

3
NO CARRIER 
x
x 
x 
x
x

4
ERROR
x
x 
x 
x
x

5
CONNECT 1200 
1
x
x
x
x

6
NO DIALTONE 
3
3 
x 
x 
x

7
BUSY 
3
3
3
x
x

8
NO ANSWER 
x 
x
x 
x
x

9
CONNECT 0600 
1 
x
x
x
x

10
CONNECT 2400 
1
x
x
x
x

11
CONNECT 4800
1
x
x
x
x

12
CONNECT 9600
1
x
x
x
x

13
CONNECT 7200
1
x
x
x
x

14
CONNECT 12000
1
x
x
x
x

15
CONNECT 14400
1
x
x
x
x

16
CONNECT 19200
1
x
x
x
x

17
CONNECT 38400
1
x
x
x
x

18
CONNECT 57600
1
x
x
x
x

19
CONNECT 115200
1
x
x
x
x

22
CONNECT 75TX/1200RX
1
x
x
x
x

23
CONNECT 1200TX/75RX
1
x
x
x
x

24
DELAYED
4
4
4
4
x

32
BLACKLISTED
4
4
4
4
x

33
FAX
x
x
x 
x
x 

35
DATA
x
x
x 
x
x 

40
CARRIER 300
x
x
x 
x
x

44
CARRIER 1200/75
x
x
x 
x
x

45
CARRIER 75/1200
x
x
x 
x
x

46
CARRIER 1200
x
x
x 
x
x

47
CARRIER 2400
x
x
x 
x
x

48
CARRIER 4800
x
x
x 
x
x

49
CARRIER 7200
x
x
x 
x
x

50
CARRIER 9600
x
x
x 
x
x

51
CARRIER 12000
x
x
x 
x
x

52
CARRIER 14400
x
x
x 
x
x

53
CARRIER 16800
x
x
x 
x
x

54
CARRIER 19200
x
x
x 
x
x

55
CARRIER 21600
x
x
x 
x
x

56
CARRIER 24000
x
x
x 
x
x

57
CARRIER 26400
x
x
x 
x
x

58
CARRIER 28800
x
x
x 
x
x

59
CONNECT 16800
1
x
x
x
x

61
CONNECT 21600
1
x
x
x
x

62
CONNECT 24000
1
x
x
x
x

Table 3-1.  Result Codes (Cont'd)
Short Form
Long Form
n Value in ATXn Command







0
1
2
3
4

63
CONNECT 26400
1
x
x
x
x

64
CONNECT 28800
1
x
x
x
x

66
COMPRESSION: CLASS 5
x
x
x 
x
x

67
COMPRESSION: V.42 bis
x
x
x 
x
x

69
COMPRESSION: NONE
x
x
x 
x
x

76
PROTOCOL: NONE
x
x
x 
x
x

77
PROTOCOL: LAPM
x
x
x 
x
x

80
PROTOCOL: ALT
x
x
x 
x
x

81
PROTOCOL: ALT-CELLULAR
x
x
x 
x
x

+F4
+FCERROR
x
x
x 
x
x

Note: An 'x' in a column indicates that the message (either the long form if verbose, or the value only for short form) will be generated when that particular value of 'n' (shown at the top of the column) has been selected by the use of ATXn. If the column is blank, then no message will be generated for that x option. A numeral indicates which less explicit message (verbose or short form) will be output for that X option. (Also, see Section 3.3).







Yn - Long Space Disconnect
This command enables/disables the generation and response to long space disconnect. The parameter value, if valid, is written to S21 bit 7.
Y0	Disables long space disconnect. (default.)
Y1	Enables long space disconnect. In non-error correction mode, the modem will send a long space of four seconds prior to going on-hook. In error correction mode, the modem will respond to the receipt of a long space (i.e., a break signal greater than 1.6 seconds) by going on-hook.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
Zn - Soft Reset and Restore Profile
The modem performs a soft reset and restores (recalls) the configuration profile according to the parameter supplied. If no parameter is specified, zero is assumed.
Z0	Soft reset and restore stored profile 0.
Z1	Soft reset and restore stored profile 1.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.2.2.	AT& Commands
&Cn - RLSD (DCD) Option
The modem controls the RLSD output in accordance with the parameter supplied. The parameter value, if valid, is written to S21 bit 5.
&C0	RLSD remains ON at all times. (Default.)
&C1	RLSD follows the state of the carrier.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Dn - DTR Option
This command interprets the ON to OFF transition of the DTR signal from the DTE in accordance with the parameter supplied. The parameter value, if valid, is written to S21 bits 3 and 4. Also, see S25.
&D0 -	DTR drop is interpreted according to the current &Qn setting as follows: (Default.)
&Q0, &Q5, &Q6	DTR is ignored (assumed ON). Allows operation with DTEs which do not provide DTR.
&Q1, &Q4	DTR drop causes the modem to hang up. Auto-answer is not affected.
&Q2, &Q3	DTR drop causes the modem to hang up. Auto-answer is inhibited.
&D1	DTR drop is interpreted according to the current &Qn setting as follows:
&Q0, &Q1, &Q4, &Q5, &Q6	DTR drop is interpreted by the modem as if the asynchronous escape sequence had been entered. The modem returns to asynchronous command state without disconnecting.
&Q2, &Q3	DTR drop causes the modem to hang up. Auto-answer is inhibited.
&D2	DTR drop is interpreted according to the current &Qn setting as follows:
&Q0 through &Q6	DTR drop causes the modem to hang up. Auto-answer is inhibited.
&D3	DTR drop is interpreted according to the current &Qn setting as follows:
&Q0, &Q1, &Q4, &Q5, &Q6	DTR drop causes the modem to perform a soft reset as if the Z command were received. The &Y setting determines which profile is loaded.
&Q2, &Q3	DTR drop causes the modem to hang up. Auto-answer is inhibited.
If &Q5, &Q6, +FCLASS=1 or +FCLASS=2 is in effect, the action taken is the same as for &Q0.
&Fn - Restore Factory Configuration (Profile)
The modem loads the factory default configuration (profile). The factory defaults are identified for each command and in the S-Register descriptions. A configuration (profile) consists of a subset of S-Registers.
&F0	Restore factory configuration 0.
&F1	Restore factory configuration 1.
Result Codes:
OK	
ERROR	If the modem is connected.
&Gn - Select Guard Tone
The modem generates the guard tone selected by this command according to the parameter supplied (DPSK modulation modes only). The parameter value, if valid, is written to S23 bits 6 and 7.
&G0	Disables guard tone. (Default for US models.)
&G1	Disables guard tone.
&G2	Selects 1800 Hz guard tone. (Default for W-class models.)
This command may not be permitted in some countries.
Result Codes:
OK	n = 0 to 2.
ERROR	Otherwise.
&Jn - Telephone Jack Control
This command is only included for compatibility and performs no function except to load the S-Register. The parameter value, if valid, is written S21 bit 1.
&J0	&J0 command. (Default.)
&J1	&J1 command.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Kn - Flow Control
This command defines the DTE/DCE (terminal/modem) flow control mechanism. The parameter value, if valid, is written to S39 bits 0, 1, and 2.
&K0	Disables flow control.
&K3	Enables RTS/CTS flow control. (Default for data modem modes.)
&K4	Enables XON/XOFF flow control.
&K5 	Enables transparent XON/XOFF flow control.
&K6 	Enables both RTS/CTS and XON/XOFF flow control. (Default for fax modem modes.)
Result Codes:
OK	n = 0, 3, 4, 5, or 6.
ERROR	Otherwise.
&Ln - Leased Line Operation
This command selects leased or dial-up line operation for compatibility. The OK response is returned for a valid parameter, but no other action is performed. The parameter value, if valid, is written to S27 bit 2.
&L0	Selects dial-up line operation. 
&L1	Selects leased line operation. 
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Mn - Asynchronous/Synchronous Mode Selection
This command determines the DTR operating mode. The modem treats the &M command as a subset of the &Q command.
&M0	Selects direct asynchronous operation. Note that the command sequence &M0\N0 selects normal buffered mode, but the command sequence \N0&M0 selects direct mode. This is because the \N0 command is analogous to the &Q6 command. The value 000b is written to S27 bits 3, 1, and 0, respectively. (See &Q).
&M1	Selects synchronous connect mode with async off-line command mode. The value 001b is written to S27 bits 3, 1, and 0, respectively. (Serial interface operation only.)
&M2	Selects synchronous connect mode with async off-line command mode. Same as &M1 except that &M2 enables DTR dialing of directory slot 0. The modem will disconnect if DTR is OFF for more than the period in S25 (in units of hundredths of a second): the data connection will be synchronous. The value 010b is written to S27 bits 3, 1, and 0, respectively. (Serial interface operation only.)
&M3	Selects synchronous connect mode. This mode allows DTR to act as a talk/data switch. The call is manually initiated while DTR is inactive. When DTR becomes active, the handshake proceeds in originate or answer mode according to S14 bit 7. The value 011b is written to S27 bits 3, 1, and 0, respectively. (Serial interface operation only.)
Result Codes:
OK	n = 0 to 3.
ERROR	Otherwise.
&Pn - Select Pulse Dial Make/Break Ratio
This command determines the make/break ratio used during pulse dialing. It is only effective if the appropriate bit to enable this command is set through the ConfigurACE program. If enabled, it will override the make/break ratios in the OEM parameters in ConfigurACE. The default is country-dependent. The parameter value, if valid, is written to S28 bits 3 and 4.
&P0	Selects 39%-61% make/break ratio at 10 pulses per second. (Default.)
&P1	Selects 33%-67% make/break ratio at 10 pulses per second.
&P2	Selects 39%-61% make/break ratio at 20 pulses per second.
&P3	Selects 33%-67% make/break ratio at 20 pulses per second.
Result Codes:
OK	n = 0 to 3.
ERROR	Otherwise.
&Qn - Sync/Async Mode
This command is an extension of the &M command and is used to control the connection modes permitted. It is used in conjunction with S36 and S48. (Also, see \N.) 
NOTE: When the &Q0 to &Q4 command is issued to select the mode, the subsequent connect message will report the DCE speed regardless of the W command and S95 settings.
&Q0	Selects direct asynchronous operation. The value 000b is written to S27 bits 3, 1, and 0, respectively. See &M0.
&Q1	Selects synchronous connect mode with async off-line command mode. The value 001b is written to S27 bits 3, 1, and 0, respectively. See &M1. (Serial interface operation only.)
&Q2	Selects synchronous connect mode with async off-line command modeand enables DTR dialing of directory 0. The value 010b is written to S27 bits 3, 1, and 0, respectively. See &M2. (Serial interface operation only.)
&Q3	Selects synchronous connect mode with async off-line command mode and enables DTR to act as Talk/Data switch. The value 011b is written to S27 bits 3, 1, and 0, respectively. See &M3. (Serial interface operation only.)
&Q4	Selects AutoSync operation. The value 100b is written to S27 bits 3, 1, and 0, respectively. 
	AutoSync operation, when used in conjunction with the Hayes Synchronous Interface (HSI) capability in the DTE, provides synchronous communication capability from an asynchronous terminal. 
	Starting AutoSync. Set registers S19, S20, and S25 to the desired values before selecting AutoSync operation with &Q4. After the CONNECT message is issued, the modem waits the period of time specified by S25 before examining DTR. If DTR is on, the modem enters the synchronous operating state; if DTR is off, the modem terminates the line connection and returns to the asynchronous command state.
	Stopping AutoSync. AutoSync operation is stopped upon loss of carrier or the on-to-off transition of DTR. Loss of carrier will cause the modem to return to the asynchronous command state. An on-to-off transition of DTR will cause the modem to return to the asynchronous command state and either not terminate the line connection (&D1 active) or terminate the line connection (any other &Dn command active).
&Q5	The modem will try to negotiate an error-corrected link. The modem can be configured using S36 to determine whether a failure will result in the modem returning on-hook or will result in fallback to an asynchronous connection. The value 101b is written to S27 bits 3, 1, and 0, respectively. (Default.)
&Q6	Selects asynchronous operation in normal mode (speed buffering). The value 110b is written to S27 bits 3, 1, and 0, respectively.
Result Codes:
OK	n = 0 to 6.
ERROR	Otherwise.
&Rn - RTS/CTS Option
This selects how the modem controls CTS. CTS operation is modified if hardware flow control is selected (see &K command). The parameter value, if valid, is written to S21 bit 2.
&R0	In sync mode, CTS tracks the state of RTS; the RTS-to-CTS delay is defined by S26. In async mode, CTS acts according to V.25 bis handshake. 
&R1	In sync mode, CTS is always ON (RTS transitions are ignored). In async mode, CTS will only drop if required by flow control. (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Sn - DSR Override
This command selects how the modem will control DSR. The parameter value, if valid, is written to S21 bit 6.
&S0	DSR will remain ON at all times. (Default.)
&S1	DSR will become active after answer tone has been detected and inactive after the carrier has been lost.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Tn - Test and Diagnostics
The modem will perform selected test and diagnostic functions according to the parameter supplied. A test can be run only when in an asynchronous operation in non-error-correction mode (normal or direct mode). To terminate a test in progress, the escape sequence must be entered first, except for parameters 7 and 8 (see Section 3.1.3). If S18 is non-zero, a test will terminate automatically after the time specified by S18 and display the OK message.
&T0	Terminates test in progress. Clears S16.
&T1	Initiates local analog loopback, V.54 Loop 3. Sets S16 bit 0. If a connection exists when this command is issued, the modem hangs up. The CONNECT XXXX message is displayed upon the start of the test.
&T2	Returns ERROR.
&T3	Initiates local digital loopback, V.54 Loop 2. Sets S16 bit 2. If no connection exists, ERROR is returned. Sets S16 bit 4 when the test is in progress.
&T4	Enables digital loopback acknowledgment for remote request, i.e., an RDL request from a remote modem is allowed. Sets S23 bit 0. (Default.)
&T5	Disables digital loopback acknowledgment for remote request, i.e., an RDL request from a remote modem is denied. Clears S23 bit 0.
&T6	Requests a remote digital loopback (RDL), V.54 Loop 2, without self test. If no connection exists, ERROR is returned. Sets S16 bit 4 when the test is in progress. The CONNECT XXXX message is displayed upon the start of the test.
&T7	Requests a remote digital loopback (RDL),V.54 Loop 2, with self test. (In self test, a test pattern is looped back and checked by the modem.) If no connection exists, ERROR is returned. When the test is terminated either via expiration of S18, or via the &T0 or H command, the number of detected errors is reported to the DTE. Sets S16 bit 5 when the test is in progress.
&T8	Initiates local analog loopback, V.54 Loop 3, with self test. (In self test, a test pattern is looped back and checked by the modem.) If a connection exists, the modem hangs up before the test is initiated. When the test is terminated either via expiration of S18, or via the &T0 or H command, the number of detected errors is reported to the DTE. Sets S16 bit 6 when the test is in progress. This command may not be available in some countries due to PTT restrictions. 
&V - Display Current Configuration and Stored Profiles
Reports the current (active) configuration, the stored (user) profiles, and the first four stored telephone numbers. The stored profiles and telephone numbers are not displayed if the NVRAM is not installed or is not operational as detected by the NVRAM test during reset processing. 
Result Code:
OK
Example:
AT&V
ACTIVE PROFILE:
B0 E1 L1 M1 N1 QO T V1 W0 X4 Y0 &C0 &D0 &G2 &J0 &K3 &Q5 &R1 &S0 &T4 &X0 &Y0
S00:002 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:030 S08:002 S09:006
S10:014 S11:255 S12:050 S18:000 S25:005 S26:001 S36:007 S37:000 S38:020 S44:020 S46:138 
S48:007 S95:000

STORED PROFILE 0:
B0 E1 L1 M1 N1 QO T V1 W0 X4 Y0 &C0 &D0 &G2 &J0 &K3 &Q5 &R1 &S0 &T4 &X0
S00:002 S02:043 S06:002 S07:030 S08:002 S09:006 S10:014 S11:095 S12:050 S18:000
S36:007 S37:000 S40:105 S41:003 S44:020 S46:138 S95:000

STORED PROFILE 1:
B0 E1 L1 M1 N1 QO T V1 W0 X4 Y0 &C0 &D0 &G2 &J0 &K3 &Q5 &R1 &S0 &T4 &X0
S00:002 S02:043 S06:002 S07:030 S08:002 S09:006 S10:014 S11:095 S12:050 S18:000
S36:007 S37:000 S40:105 S41:003 S44:020 S46:138 S95:000

TELEPHONE NUMBERS:
0 = 	1 =
2 = 	3 =

OK

If the NVRAM is not installed or is not operational as detected by the NVRAM test, the following message is displayed:
NVRAM FAILED OR NOT INSTALLED
&Wn - Store Current Configuration
Saves the current (active) configuration (profile), including S-Registers, in one of the two user profiles in NVRAM as denoted by the parameter value. This command will yield an ERROR message if the NVRAM is not installed or is not operational as detected by the NVRAM test.
The current configuration is comprised of a list of storable parameters illustrated in the &V command. These settings are restored to the active configuration upon receiving an Zn command or at power up (see &Yn command).
&W0	Store the current configuration as profile 0.
&W1	Store the current configuration as profile 1.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
&Xn - Select Synchronous Clock Source
Selects the source of the transmit clock for the synchronous mode of operation. The parameter value, if valid, is written to S27 bits 4 and 5.
In asynchronous mode, the transmit and receive clocks are turned OFF. In synchronous mode, the clocks are turned ON with the frequency of 1200 Hz or faster corresponding to the speed that is selected for modem operation.
&X0	Selects internal timing. The modem generates the transmit clock signal and applies it to the TXCLK output at the serial interface.
&X1	Selects external timing. The local DTE sources the transmit clock signal on the XTCLK input of the serial interface. The modem applies this clock to the TXCLK output at the serial interface.
&X2	Selects slave receive timing. The modem derives the transmit clock signal from the incoming carrier and applies it to the TXCLK output at the serial interface.
Result Codes:
OK	n = 0 to 2.
ERROR	Otherwise.
&Yn - Designate a Default Reset Profile
Selects which user profile will be used after a hard reset.
&Y0	The modem will use profile 0.
&Y1	The modem will use profile 1.
Result Codes:
OK	n = 0 to 1.
ERROR	If n > 1, or if NVRAM  is not installed or is not operational.
&Zn=x - Store telephone number
The modem can store up to four  telephone numbers and each telephone number dial string can contain up to 45 digits.
&Zn=x	n = 0 to 3 and x = dial string. (Requires 256-byte NVRAM.)
Result Codes:
OK	For n _ 3, and x _ 45 digits.
ERROR	If n > 3, x > 45 digits, or if NVRAM  is not installed or is not operational.
3.2.3.	AT% Commands
%En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward
Controls whether or not the modem will automatically monitor the line quality and request a retrain (%E1) or fall back when line quality is insufficient or fall forward when line quality is sufficient (%E2). Applies to dial-up line only. The parameter value, if valid, is written to S41 bits 2 and 6.
If enabled, the modem attempts to retrain for a maximum of 30 seconds.
%E0	Disable line quality monitor and auto-retrain. (Default.)
%E1	Enable line quality monitor and auto-retrain.
%E2	Enable line quality monitor and fallback/fall forward. 
%E3	Enable line quality monitor and auto-retrain, but hang-up immediately when EQM reaches hang-up threshold (fast hang-up).
Result Codes:
OK	n = 0, 1, or 2.
ERROR	Otherwise.
Fallback/Fall Forward. When %E2 is active, the modem monitors the line quality (EQM). When line quality is insufficient, the modem will initiate a rate renegotiation to a lower speed within the V.32 bis/V.32 modulation speeds. The modem will keep falling back if necessary until the speed reaches 4800 bps. Below this rate, the modem will only do retrains if EQM thresholds are exceeded. If the EQM is sufficient for at least one minute, the modem will initiate a rate renegotiation to a higher speed within the V.32/V.32bis modulation speeds. The rate renegotiations will be done without a retrain if a V.32bis connection is established.
Speeds attempted during fallback/fall forward are those shown to be available in the rate sequences exchanged during the initial connection. Fallback/fall forward is available in error correction and normal modes, but not in direct mode or synchronous mode with external clocks. 
%L - Line Signal Level
Returns a value which indicates the received signal level. The value returned is a direct indication (DAA dependent) of the receive level at the MDP, not at the telephone line connector. For example, 009 = -9 dBm, 043 = -43 dBm, and so on.
Result Codes:
OK
%Q - Line Signal Quality
Reports the line signal quality (DAA dependent). Returns the higher order byte of the EQM value. Based on the EQM value, retrain or fallback/fall forward may be initiated if enabled by %E1 or %E2.
Example:
AT%Q015
Result Codes:
OK	If connected.
ERROR 	If not connected, or connected in 300 bps, V.23, or fax modes.
%T - PTT Testing Utilities
Facilitates PTT testing of signal levels by providing continuous signals regardless of whether the modem is connected or not. The signal transmitted is in accordance with the parameter provided.
This is a range of commands that allow the user to initiate a series of signals that are necessary for PTT approval. The signals emitted include answer tone, modulation, carriers, and other pertinent signals. A test is initiated upon receipt of an %TTn (the second T is a password and n is a test number), and the test is aborted when any keyboard character is entered. The modem will continuously transmit the tone or carrier according to the parameter supplied.
	%TT00-%TT09	DTMF tone dial digits 0 to 9.	%TT0A	DTMF digit *.	%TT0B	DTMF digit #.	%TT0C	DTMF digit A.	%TT0D	DTMF digit B.	%TT0E	DTMF digit C.	%TT0F	DTMF digit D.	%TT10	V.21 channel 1 mark (originate) symbol.	%TT11	V.21 channel 2 mark symbol.	%TT12	V.23 backward channel mark symbol.	%TT13	V.23 forward channel mark symbol.	%TT15	V.22 originate (call mark) signalling at 1200 bps.	%TT16	V.22 bis originate (call mark) signalling at 2400 bps.	%TT17	V.22 answer signalling (guard tone if PTT required).	%TT18	V.22 bis answer signalling (guard tone if required).	%TT19	V.21 channel 1 space symbol.	%TT1A	V.21 channel 2 space symbol.	%TT1B	V.23 backward channel space symbol.	%TT1C	V.23 forward channel space symbol.	%TT20	V.32 9600 bps.	%TT21	V.32 bis 14400 bps.	%TT30	Silence (on-line), i.e., go off-hook.	%TT31	V.25 answer tone.	%TT32	1800 Hz guard tone.	%TT33	V.25 calling tone (1300 Hz).	%TT34	Fax calling tone (1100 Hz).	%TT40	V.21 channel 2	%TT41	V.27 ter 2400 bps	%TT42	V.27 ter 4800 bps	%TT43	V.29 7200 bps	%TT44	V.29 9600 bps	%TT45	V.17 7200 bps long train	%TT46	V.17 7200 bps short train	%TT47	V.17 9600 bps long train	%TT48	V.17 9600 bps short train	%TT49	V.17 12000 bps long train	%TT4A	V.17 12000 bps short train	%TT4B	V.17 14400 bps long train	%TT4C	V.17 14400 bps short train	%TT5R,S,C,A,P	V.FC modulation, where the R, S, C, A, and P parameters are:

Parameter
Description
Default
V.FC Range
V.FC Parameter

R 
Data Rate
-
5-11
CONF (+ 41h)

S
Symbol Rate
0 (2400 baud)
0-5 (mask)
Fn60, Addr 101

C
Carrier Offset
0
n*5Hz
Fn59, Addr 212

A
Aux Channel
0
0/1
SECEN

P
Pre-Emphasis
0
0-15
Fn63, Addr 0E6

Notes:
1.	If a parameter is omitted, it will assume its default value. No special error or bounds checking will be done. (For example, a symbol rate mask of 02 is illegal for the RC288DPi/VFC but will not be checked). The user is expected to select meaningful combinations of parameters.
2.	Transmit level deviation is disabled. 






3.2.4.	AT\ Commands
\Gn - Modem-to-Modem Flow Control (XON/XOFF)
In non-error correction mode, the modem enables or disables the generation or recognition of modem-to-modem XON/XOFF flow control according to the parameter supplied. The parameter value, if valid, is written to S41 bit 3.
In error correction mode, the setting of modem-to-modem XON/XOFF flow control is ignored. However, the serial port flow control settings (AT&K) remain active during a reliable link.
Due to the buffering system used in the modem, modem-to-modem flow control is normally disabled.
\G0	Disables modem-to-modem XON/XOFF flow control. (Default.)
\G1	Enables modem-to-modem XON/XOFF flow control.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
\Kn - Break Control
Controls the response of the modem to a break received from the DTE or the remote modem or the \B command according to the parameter supplied. The parameter value, if valid, is written to S40 bits 3, 4, and 5.
The response is different in three separate states.
The first state is where the modem receives a break from the DTE when the modem is operating in data transfer mode:
\K0	Enter on-line command mode, no break sent to the remote modem.
\K1	Clear data buffers and send break to remote modem.
\K2	Same as 0.
\K3	Send break to remote modem immediately.
\K4	Same as 0.
\K5	Send break to remote modem in sequence with transmitted data. (Default.)
The second case is where the modem is in the on-line command state (waiting for AT commands) during a data connection, and the \B is received in order to send a break to the remote modem:
\K0	Clear data buffers and send break to remote modem.
\K1	Clear data buffers and send break to remote modem. (Same as 0.)
\K2	Send break to remote modem immediately.
\K3	Send break to remote modem immediately. (Same as 2.)
\K4	Send break to remote modem in sequence with data.
\K5	Send break to remote modem in sequence with data. (Same as 4.) (Default.)
The third case is where a break is received from a remote modem during a non-error corrected connection:
\K0	Clears data buffers and sends break to the DTE.
\K1	Clears data buffers and sends break to the DTE. (Same as 0.)
\K2	Send a break immediately to DTE.
\K3	Send a break immediately to DTE. (Same as 2.)
\K4	Send a break in sequence with received data to DTE.
\K5	Send a break in sequence with received data to DTE. (Same as 4.) (Default.)
Result Codes:
OK	n = 0 to 5.
ERROR	Otherwise.
\Nn - Operating Mode
This command controls the preferred error correcting mode to be negotiated in a subsequent data connection. This command is affected by the OEM firmware configuration.
\N0	Selects normal speed buffered mode (disables error-correction mode). (Forces &Q6.)
\N1	Serial interface selected - Selects direct mode and is equivalent to &M0, &Q0 mode of operation. (Forces &Q0.)
	Parallel interface selected - Same as \N0.
\N2	Selects reliable (error-correction) mode. The modem will first attempt a LAPM connection and then an MNP connection. Failure to make a reliable connection results in the modem hanging up. (Forces &Q5, S36=4, and S48=7.)
\N3	Selects auto reliable mode. This operates the same as \N2 except failure to make a reliable connection results in the modem falling back to the speed buffered normal mode. (Forces &Q5, S36=7, and S48=7.)
\N4	Selects LAPM error-correction mode. Failure to make an LAPM error-correction connection results in the modem hanging up. (Forces &Q5 and S48=0.) Note: The -K1 command can override the \N4 command.
\N5	Selects MNP error-correction mode. Failure to make an MNP error-correction connection results in the modem hanging up. (Forces &Q5, S36=4, and S48=128.)
Result Codes:
OK	n = 0 to 5.
ERROR	Otherwise.
3.2.5.	AT*Commands
*F - Download to Flash Memory
The flash memory downloader allows the flash memory to be upgraded with revised firmware versions. The AT*Fn command initiates the flash download function. The flash memory (ATMEL AT29C010 device) must first be programmed with an existing hex file generated for flash capability. The following sequence describes the flash download process:
a.	AT*Fn initiates the download mode.
	AT*F0 = Download speed is the last sensed speed.
	AT*F1 = Download speed is 38.4 kbps
	AT*F2 = Download speed is 57.6 kbps
	AT*F3 = Download speed is 115.2 kbps	
b. 	Once the AT*Fn command is issued, the "Download initiated" message will appear.
c. 	Perform an ASCII upload of the new hex file (flash version) to the modem.
d. 	A "Wrong Device" messages is printed if an incorrect device is used (non ATMEL AT29C010).
e. 	A "Device successfully programmed" message will be displayed at the completion of a successful download.
f. 	A "Wrong Hex file or flow control" message is displayed if an incompatible hex file is used (non-Motorola S3 format) or when the DTE ignores flow control. The flash download uses both Xon/Xoff and RTS/CTS flow control.
	If the download fails to complete, and the modem is reset the downloader will automatically be restarted using a default baud rate of 9600 bps. If the download has completed, but the modem code will not run properly (for example this will happen if serial code is loaded into a parallel modem), the download operation can be forced by resetting the modem with the MCU NMI pin held low.
3.3.	ERROR DETECTION AND DATA COMPRESSION COMMANDS
3.3.1.	AT% Commands
%C - Enable/Disable Data Compression
Enables or disables data compression negotiation. The modem can only perform data compression on an error corrected link. The parameter value, if valid, is written to S41 bits 0 and 1.
%C0	Disables data compression. Resets S46 bit 1.
%C1	Enables MNP 5 data compression negotiation. Resets S46 bit 1.
%C2	Enables V.42 bis data compression. Sets S46 bit 1.
%C3	Enables both V.42 bis and MNP 5 data compression. Sets S46 bit 1. (Default.)
Result Codes:
OK	n = 0, 1, 2, or 3.
ERROR	Otherwise.
3.3.2.	AT\ Commands
\An - Select Maximum MNP Block Size
The modem will operate an MNP error corrected link using a maximum block size controlled by the parameter supplied. The parameter value, if valid, is written to S40 bits 6 and 7.
\A0	64 characters.
\A1	128 characters. (Default.)
\A2	192 characters.
\A3	256 characters.
Result Codes:
OK	n = 0 to 3.
ERROR	Otherwise.
\Bn - Transmit Break to Remote
In non-error correction mode, the modem will transmit a break signal to the remote modem with a length in multiples of 100 ms according to parameter specified. If a number in excess of 9 is entered, 9 is used. The command works in conjunction with the \K command.
In error correction mode, the modem will signal a break through the active error correction protocol, giving no indication of the length.
\B1-\B9	Break length in 100 ms units. (Default = 3.) (Non-error corrected mode only.)
Result Codes:
OK	If connected in data modem mode.
NO CARRIER	If not connected or connected in fax modem mode.
Note: When the modem receives a break from the remote modem, break is passed to the DTE as follows: In non-error correction mode direct, the break length is passed; in non-error correction mode normal and in error correction mode, a 300 ms break is passed.
\Ln - MNP Block/Stream Mode Select
At connection time, this command controls the selection between block and stream modes of operation in MNP. The parameter value, if valid, is written to S41 bit 4.
\L0	Use stream mode for MNP connection. (Default.)
\L1	Use interactive block mode for MNP connection. This command will accept block mode but implement stream mode.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.4.	MNP 10 COMMANDS
3.4.1.	AT) Commands
Enables or disables automatic adjustment of the transmit power level to accommodate the signalling requirements of cellular telephone equipment. The parameter value, if valid, is written to S40 bit 2. Note that the @Mn command sets the initial transmit level.
)M0	Disables power level adjustment during MNP 10 link negotiation. The )M0 command will allow the transmitter adjustment if cellular operation is requested by the remote modem.(Default.)
)M1	Enables power level adjustment during MNP 10 link negotiation. NOTE: )M1 should not be used with *H2.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.4.2.	AT- Commands
*Hn - Link Negotiation Speed
This command controls the connection speed for link negotiations before upshift occurs between two MNP 10 modems. The parameter value, if valid, is written to S28 bits 6 and 7.
*H0	Link negotiation occurs at the highest supported speed. (Default.)
*H1	Link negotiation occurs at 1200 bps; used primarily for establishing cellular connections.
*H2	Link negotiation occurs at 4800 bps; used primarily to negotiate an MNP 10 connection on less than average quality telephone lines
Result Codes:
OK	n = 0 to 2.
ERROR	Otherwise.
-Kn - MNP Extended Services
Enables or disables conversion of a V.42 LAPM connection to an MNP 10 connection. The parameter value, if valid, is written to S40 bits 0 and 1.
-K0	Disables V.42 LAPM to MNP 10 conversion.
-K1	Enables V.42 LAPM to MNP 10 conversion. (Default.)
-K2	Enables V.42 LAPM to MNP 10 conversion; inhibits MNP Extended Services initiation during V.42 LAPM answer mode detection phase.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
-Qn - Enable Fallback to V.22 bis/V.22
Enables or disables fallback from MNP 10 to V.22 bis/V.22. The parameter value, if valid, is written to S40 bit 1.
-Q0	Disables fallback to 2400 bps (V.22bis) and 1200 bps (V.22). Fallback is enabled only to 4800 bps.
-Q1	Enables fallback to 2400 bps (V.22bis) and 1200 bps (V.22). (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
@Mn - Initial Cellular Power Level Setting
Sets the initial transmit power level for upshift at connect until line conditions can be determined. @M0 corresponds to -26dBm, @M1 corresponds to -30 dBm, @M2 through @M10 correspond to -10 dBm, and @M11 through @M31 correspond to -11 dBm to -31 dBm, respectively. The parameter value, if valid, is written to S201 bits 0-4. 
@M0	-26 dBm (Default.)
@M1	-30 dBm
@M2	-10 dBm
@M3 - @M10 	-10 dBm
@M11 	-11 dBm
@M12	-12 dBm
.
.
.
@M30 	-30 dBm
@M31 	-31 dBm
Result Codes:
OK	n = 0 to 31.
ERROR	Otherwise.
:E - Compromise Equalizer Enable Command
Enables or disables the V.32 compromise equalizer. The parameter value, if valid, is written to S201 bit 5. This command can be used when the modem is attached to either a flat line or a cellular connection.
:E0	Disables the equalizer
:E1	Enables the equalizer (Default.)
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.5.	W-CLASS COMMANDS
3.5.1.	AT% Commands
%Fn - Split-Speed Direction Select
Determines which direction (transmit or receive) has the 75 bps channel, and which has the 1200 bps channel. This command is only valid if the \W1 command has been executed.
%F1	Selects 75Tx/1200Rx. Resets S28 bits 1 and 2. (Default.)
%F2	Selects 1200Tx/75Rx. Sets S28 bit 1 and resets S28 bit 2. 
3.5.2.	AT* Commands
*B - Display Blacklisted Numbers
This command requests the modem to return a list of blacklisted numbers to the DTE. The format of the response is shown by the example below. Permanently forbidden numbers as defined by country requirements will not appear on this list. If no numbers are blacklisted, only the OK result code is issued.
Example:
	NO. - PHONE NUMBER -
	------ ------------------------------
	1;	4175537660 	2;	8288924961	3;	3887278862	4;	3124839442	5;	6284664
	
	OK
*D - Display Delayed Numbers
This command causes the modem to send a list of the delayed numbers together with the delay associated with each. The modem will return a list of delayed telephone numbers as defined in the *B command. The format of the response is shown by the example below (delay times are shown as hours:minutes:seconds). If no numbers are delayed, only the OK result code is issued.
Example:
	NO. - PHONE NUMBER -DELAY
	------ -------------------------------------------
	1;	8264734660	2:00:00	2;	7532634661	2:00:00	3;	2587334662	0:02:00	4;	7532651663	0:03:25	5;	7459931664	0:01:45
	
	OK
*NCnn - Country Select
Up to 20 sets of country parameters may be stored in the EPROM. This command checks to see if the entered number matches the country code of one of the countries stored in the EPROM. If found, the modem stores the location of that country in NVRAM. Upon power up or a soft reset (Z command), the modem uses this location to load the parameters for the corresponding country. The default value of zero is used if no NVRAM is installed or the NVRAM failed self test during reset.
Note: Automatic DAA country code recognition is enabled by the NC0 command (the 0 country code is reserved for this function). Automatic DAA country code recognition is disabled by the NCnn command selecting any other valid country code.
*NCnn	Select country parameters corresponding to entered country code (nn). The country codes are:
	Country	Code (nn)
	Australia	40	Austria	1	Belgium	2	Bulgaria	27	Canada	20	Czech Republic	19	Denmark	3	Finland	4	France	5	Germany	6	Greece	17	Hungary	23	Ireland	7	Israel	18	Italy	8	Japan	43	Luxembourg	9	Mexico	21	Netherlands	10	New Zealand	48	Norway	11	Poland	24	Portugal	12	Russia	25	Singapore	47	Slovac Republic	26	Spain	13	Sweden	14	Switzerland	15	United Kingdom	16	United States	22
Result Codes:
OK	If parameters corresponding to entered country code are present in EPROM.
ERROR	Otherwise.
*Zn - Change Dial Codes:
In some countries, notably Norway, there exist two methods of pulse dialing. This command allows the user to select one of the two methods as appropriate for the application.
*Z0	Use dial code 0. (Default.)
*Z1	Use dial code 1.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.5.3.	AT\ Commands
\S - Report Active Configuration 
The modem reports the current (active) configuration for display.
Example:
CMD
DESCRIPTION / 
OPTION
CMD
DESCRIPTION / 
OPTION
CMD
DESCRIPTION / 
OPTION 

---
--------------
-------
---
--------------
-------
---
--------------
-------


DTE BPS
2400
&C
DCD OPTION
0
S0
RINGS TO ANS
002


DTE PARITY
8NONE
&D
DTR OPTION
0
S1
RING COUNT
000


DIAL MODE
PULSE
&G
GUARD TONE
NONE
S2
<ESC> CHAR
043


LINE SPEED
NONE
&K
FLOW CONTROL
NONE
S3
<CR> CHAR
013

B
BELL MODE
OFF
&P
PULSE MODE
0
S4
<LF> CHAR
010

E
CMD ECHO
ON
&Q
ASYNC/SYNC
0
S5
<BS> CHAR
008

F
LINE MODE
AUTO
&R
RTS/CTS
0
S8
PAUSE TIME
001

L
SPKR VOLUME
LOW
&S
DSR OPT
0
S12
ESC PROMPT DELAY
050

M
SPKR CONTROL
1
&T
ENABLE RDL
YES
S18
TEST TIME
000

N
AUTO MODE
OFF
&X
SYNC CLOCK 
INT
S24
SLEEP INACT
000

Q
QUIET
ON
&Y
PROFILE
NVM 0
S30
CONNECT INACT
000

V
RESULT FORM
LONG
\A
MAX BLK SIZE
64
S32
<XON> CHAR
017

W
EC MESG
0
\G
REMOTE FLOW
ON
S33
<XOFF> CHAR
019

X
EXT RESULTS
4
\K
BRK OPT
2
S36
FALLBACK ACTION
000

Y
LONG SPACE DISC
YES
\N
ECL MODE 
NORM
S37
MODE SELECT
000

%C
COMPRESSION
BOTH
\W
SPLIT SPEED
OFF
S38
V.42 NEG. CTRL
000

%E
AUTO RETRAIN
OFF
*H
NEG. SPEED
HIGH
S48
V42 NEG CTRL
128

-K
EXT. SERVICES
OFF
)M
CELLULAR
OFF
S95
RES. CODE
000











OK









\Wn - Split-Speed Operation
This command supports a split-speed DCE/DTE interface for applications such as Viewdata terminals which require a transmit speed of 75 bps and receive speed of 1200 bps at the DTE interface. The parameter value, if valid, is written to S28 bit 0.
\W0	Disables split-speed mode. (Default.)
\W1	Enables split-speed mode. V.23 operation is also forced as though F3 had been entered. Note that %Fn command determines the split screen direction.
Result Codes:
OK	n = 0 or 1.
ERROR	Otherwise.
3.6.	CALLER ID COMMANDS
3.6.1.	AT#CID Command

#CIDn - Caller ID
Enables or disables Caller ID.
#CID=0	Disables Caller ID. (Default.)
#CID=1	Enables Caller ID with formatted presentation to the DTE. The modem will present the data items in a <Tag><Value> pair format. The expected pairs are data, time, caller code (telephone number), and name.
#CID=2	Enables Caller ID with unformatted presentation to the DTE. The modem will present the entire packet of information, excluding the leading U's, in ASCII printable hex numbers.
Result Codes:
OK	n = 0 or 2.
ERROR	Otherwise.
Inquiries
#CID?	Retrieves the current Caller ID mode from the modem.
#CID=?	Returns the mode capabilities of the modem in a list with each element separated by commas.
Formatted Form Reporting
The modem presents the data in the <tag> = <value> pair format as described in the table below. Spaces are present on both sides of the equal sign.
	Tag	Description
DATE	DATE = MMDD where MM is the month number (01 to 12) and DD is the day number (01..31).
TIME	TIME = HHMM where HH is the hour number (00 to 23) and MM is the minute number (00 to 59).
NMBR	NMBR = <number> or P or O where <number> is the telephone number of the caller, where P indicates that the calling number information is not available since the originating caller has requested private service, and where O indicates that the calling number information is not available or out of service at the calling location.
NAME	NAME = <listing name> where <listing name> is the subscription name.
MESG	MESG = <data tag> <length of message> <data> <checksum> in printable ASCII hex numbers. This tag indicates a data item not listed above. The message is only possible for Multiple Message Format.
Notes:
1.	The modem does not present any Caller ID information if the DCE detects a checksum error in the Caller ID packet.
2.	In the event of an unrecognized data tag, the modem will present the data in ASCII hex numbers following the MESG tag.
Example of Formatted Form Reporting
1.	The following example illustrates the standard Caller ID message packet.
RING
DATE	=	0321TIME	=	1405NMBR	=	5045551234NAME	=	A N OTHER
RING
RING
2.	The following example illustrates the case where the tag of the packet is not recognized by the modem.
RING
MESG	=	060342424231
RING
RING
Unformatted Form Reporting
The modem presents all information and packet control information found in the message. The modem, however, excludes the leading U's (channel seizure information) from the presentation. The packet is presented in ASCII printable hex numbers, the modem does not insert spaces, or line feeds, for formatting between bytes or words of the packet.
The modem does not detect the checksum of the packet.
Example of Unformatted Form Reporting
RING
0412303332323234303539313435353132333435
RING
RING
3.7.	AT COMMAND RESULT CODES
The modem responds to commands from the DTE and to activity on the line by signalling to the DTE in the form of result codes. The result codes that the modem can send are described below.
Two forms of each result code are available: long-form, an English-like "verbose" response, and short-form, a data-like numeric response (included in parentheses following the long-form). The long-form code is preceded and terminated by the sequence < CR> < LF>. The short-form is terminated by < CR>, only with no preceding sequence.
If result messages are suppressed, nothing is returned to the DTE. The long-form results codes can be modified by the OEM through the ConfigurACE Configuration Utility Program. (See ConfigurACE description.)
0- OK
The OK code is returned by the modem to acknowledge execution of a command line.
1- CONNECT
The modem will send this result code upon connecting when:
1.	The line speed is 300 bps and the modem has been instructed to report the line speed to the DTE upon connecting, or
2.	The DTE speed is 300 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting, or
3.	The range of result code responses is restricted by the X command such that no speed reporting is allowed.
2- RING
The modem sends this result code when incoming ringing is detected on the line. What qualifies as a ring signal is determined by country-dependent parameters, modifiable through ConfigurACE.
3- NO CARRIER
The modem sends this result code when attempting to establish a call if:
1.	Ringback is detected and later ceases but no carrier is detected within the period of time determined by register S7, or
2.	No ringback is detected within the period of time determined by register S7.
This result code is also used when the modem auto-disconnects due to loss of carrier.
Under X0, if busy tone detection is enforced, this result code is used as a response to the detection of busy or circuit busy. Under X0, if dial tone detection is enforced or selected, this result code is used to indicate that dial tone has not been detected.
4- ERROR
The modem returns this result code if the command line contains a syntax error or it is unable to execute a command contained in the command line. It is issued if a command does not exist or if the parameter supplied is outside the permitted range.
Under X0, X1, X2, and X3, this result is used instead of DELAYED and BLACKLISTED.
5- CONNECT 1200
For X1, X2, X3, and X4, the modem sends this result code when:
1.	The line speed is 1200 bps and the modem has been instructed to report the line speed to the DTE upon connecting, or
2.	The DTE speed is 1200 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
(Also, see the W command.)
6- NO DIALTONE
For X2 and X4, the modem sends this result code if it has been instructed to wait for dial tone during dialing but none is received.
7- BUSY
For X3 and X4, if busy tone detection is enforced, the modem sends this result code when attempting to originate a call if the busy (engaged) signal is detected on the line.
8- NO ANSWER
The modem sends this result code when attempting to originate a call if a continuous ringback signal is detected on the line until the expiration of the timer S7.
9- CONNECT 0600
For X1, X2, X3, and X4, the modem sends this result code when:
1.	The line speed is 600 bps and the modem has been instructed to report the line speed to the DTE upon connecting, or
2.	The DTE speed is 600 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
10- CONNECT 2400
For X1, X2, X3, and X4, the modem sends this result code when:
1.	The line speed is 2400 bps and the modem has been instructed to report the line speed to the DTE upon connecting, or
2.	The DTE speed is 2400 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
11- CONNECT 4800
For X1, X2, X3, and X4, the modem sends this result code when the DTE speed is 4800 bps and the modem has been instructed to report the DTE speed upon connecting.
12- CONNECT 9600
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 9600 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
13- CONNECT 7200
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 7200 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
14- CONNECT 12000
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 12000 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
15- CONNECT 14400
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 14400 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
16- CONNECT 19200
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 19200 bps and the modem has been instructed to report the DTE speed upon connecting.
17- CONNECT 38400
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 38400 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
18- CONNECT 57600
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 57600 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
19- CONNECT 115200
For X1, X2, X3, and X4, the modem sends this result code upon connecting when the DTE speed is 115200 bps and the modem has been instructed to report the DTE speed to the DTE upon connecting.
22- CONNECT 75TX/1200RX
For X1, X2, X3, and X4, the modem returns this result code upon establishing a V.23 originate connection when the modem has been instructed to report the DCE speed upon connection.
23- CONNECT 1200TX/75RX
For X1, X2, X3, and X4, the modem returns this result code upon establishing a V.23 answer connection when the modem has been instructed to report the DCE speed upon connection.
24- DELAYED
For X4, the modem returns this result code when a call fails to connect and the number dialed is considered 'delayed' due to country blacklisting requirements.
32- BLACKLISTED
For X4, the modem returns this result code when a call fails to connect and the number dialed is considered 'blacklisted'.
33- FAX
The modem returns this result code when a fax modem connection is established in a facsimile mode.
35- DATA
The modem returns this result code when a data modem connection is established in a facsimile mode.
40- CARRIER 300
The modem returns this result code when either a V.21 or Bell 103 carrier has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.)
44- CARRIER 1200/75
The modem sends this result code when the V.23 backward channel carrier has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.)
45- CARRIER 75/1200
The modem sends this result code when the V.23 forward channel carrier has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.)
46- CARRIER 1200
The modem sends this result code when either the high or low channel carrier in either V.22 or Bell 212 mode has been detected on the line and carrier reporting has been enabled. (See S95 and Xn.)
47- CARRIER 2400
The modem sends this result code when either the high or low channel carrier in V.22 bis mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
48- CARRIER 4800
The modem sends this result code when the 4800 bps data rate in V.32 bis or V.32 mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
49- CARRIER 7200
The modem sends this result code when the 7200 bps data rate in V.32 bis mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
50- CARRIER 9600
The modem sends this result code when the 9600 bps data rate in V.32 bis or V.32 mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
51- CARRIER 12000
The modem sends this result code when the 12000 bps data rate in V.32 bis mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
52- CARRIER 14400
The modem sends this result code when the 14400 bps data rate in V.32 bis mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
53- CARRIER 16800
The modem sends this result code when the 16800 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
54- CARRIER 19200
The modem sends this result code when the 19200 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
55- CARRIER 21600
The modem sends this result code when the 21600 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
56- CARRIER 24000
The modem sends this result code when the 24000 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
57- CARRIER 26400
The modem sends this result code when the 26400 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
58- CARRIER 28800
The modem sends this result code when the 28800 bps data rate in V.FC mode has been detected on the line, and carrier reporting has been enabled. (See S95 and Xn.)
59- CONNECT 16800
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 16800 bps and the modem has been instructed to report the DTE speed upon connecting.
61- CONNECT 21600
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 21600 bps and the modem has been instructed to report the DTE speed upon connecting.
62- CONNECT 24000
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 24000 bps and the modem has been instructed to report the DTE speed upon connecting.
63- CONNECT 26400
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 26400 bps and the modem has been instructed to report the DTE speed upon connecting.
64- CONNECT 28800
For X1, X2, X3, and X4, the modem returns this result code upon connecting when the DTE speed is 28800 bps and the modem has been instructed to report the DTE speed upon connecting.
66- COMPRESSION: CLASS 5
This message is sent to the DTE when the modem has connected in MNP Class 5 and COMPRESSION message reporting has been enabled. (See S95 and Xn.)
67- COMPRESSION: V.42 bis
This message is sent to the DTE when the modem has connected in V.42 bis and COMPRESSION message reporting has been enabled. (See S95 and Xn.)
69- COMPRESSION: NONE
This message is sent to the DTE when the modem has connected without data compression and COMPRESSION message reporting has been enabled. (See S95 and Xn.)
70- PROTOCOL: NONE
This message is sent to the DTE when the modem has connected without any form of error correction, and the PROTOCOL message reporting has been enabled. (See S95 and Xn.)
77- PROTOCOL: LAPM
This message is sent to the DTE when the modem has connected in the V.42 LAPM mode of error correction, and PROTOCOL message reporting has been enabled. (See S95 and Xn.)
80- PROTOCOL: ALT
This message is sent to the DTE when the modem has connected in the MNP mode of error correction, and PROTOCOL message reporting has been enabled. (See S95 and Xn.)
81- PROTOCOL: ALT-CELLULAR
This message is sent to the DTE when the modem has connected in the MNP10 mode and cellular power level adjustment is enabled (")M1").(See S95 and Xn.)
+FC- FCERROR
This message is sent to the DTE when the modem has detected an error in fax class 1 or fax class 2 mode.
This page is intentionally blank.
4.	S-REGISTERS
The S-Registers are summarized in Table 4-1 along with their default values. Registers denoted with an '*' in Table 4-1 may be stored in one of the two user profiles by entering the &Wn command. One of these profiles may be loaded at any time by using the Zn command. Registers or register fields quoted as reserved are reserved for current or future use by the firmware, or are permanently overridden by PTT limitations. For the latter, control of the equivalent functionality is available with ConfigurACE Call Progress and Blacklisting options. 
All bit-mapped registers are read-only. The appropriate AT command which controls the relevant bits in the S-Register should be used to change the value. 
4.1.	FACTORY DEFAULTS
The factory default values are stored in ROM and are loaded into the active configuration at power up or by the ATZn command. In addition, the designated default profile is subsequently loaded, and may change some of the factory default values. The designated default profile can be changed by entering the &Yn command where n is one of the two possible user profiles.
The defaults shown are those used by Rockwell in factory profiles zero and one. These may be overwritten by the OEM with ConfigurACE prior to placing the firmware in PROM. Minimum and maximum values may also be imposed by ConfigurACE in response to country PTT requirements.
The default values shown in Table 4-1 may vary by modem firmware configuration. Consult the MCU firmware release notes for exact configuration.
The factory default values may be loaded at any time by entering the &Fn command.
Table 4-1. S-Register Summary
Register
Function
Range
Units
Saved
Default**

S0
Rings to Auto-Answer
0-255
rings
*
0 (US models)2 (W-class models)

S1
Ring Counter
0-255
rings

0

S2
Escape Character
0-255
ASCII
*
43

S3
Carriage Return Character
0-127
ASCII

13

S4
Line Feed Character
0-127
ASCII

10

S5
Backspace Character
0-255
ASCII

8

S6
Wait Time for Dial Tone
2-255
s
*
2 (US models)4 (W-class models)

S7
Wait Time for Carrier
1-255
s
*
50

S8
Pause Time for Dial Delay Modifier
0-255
s
*
2

S9
Carrier Detect Response Time
1-255
0.1 s
*
6

S10 
Carrier Loss Disconnect Time
1-255
0.1 s 
*
14

S11
DTMF Tone Duration
50-255
0.001 s
*
95

S12
Escape Prompt Delay
0-255
0.02 s 
*
50

S13 
Reserved
-
-

-

S14 
General Bit Mapped Options Status
-
-
*
138 (8Ah)

S15 
Reserved
-
-

-

S16
Test Mode Bit Mapped Options Status (&T)
-
-

0

S17
Reserved
-
-

-

S18 
Test Timer
0-255
s
*
0

S19
AutoSync Options
-
-

0

S20
AutoSync HDLC Address or BSC Sync Character
0-255
-
*
0

S21
V.24/General Bit Mapped Options Status
-
-
*
4 (04h)

S22 
Speaker/Results Bit Mapped Options Status
-
-
*
117 (75h)

S23 
General Bit Mapped Options Status

-
*
55 (37h) (US models)183 (B7h) (W-class models)

S24 
Sleep Inactivity Timer
0-255
s
*
0

S25 
Delay to DTR Off
0-255
s or 0.01 s

5

S26 
RTS-to-CTS Delay
0-255
0.01 s

1

S27 
General Bit Mapped Options Status
-
-
*
73 (49h) (US models)9 (09h) (W-class models )

S28 
General Bit-Mapped Options Status
-
-
*
0

S29
Flash Dial Modifier Time
0-255
10 ms

0

S30 
Disconnect Inactivity Timer
0-255
10 s

0

S31 
General Bit-Mapped Options Status
-
-
*
2

S32
XON Character
0-255
ASCII

17 (11h)

S33
XOFF Character
0-255
ASCII

19 (13h)

S34-S35 
Reserved
-
-

-

S36 
LAPM Failure Control
-
-
*
7

S37 
Line Connection Speed
-
-
*
0

S38 
Delay Before Forced Hangup
0-255
s

20

S39 
Flow Control Bit Mapped Options Status
-
-
*
3

Table 4-1. S-Register Summary (Cont'd)
Register
Function
Range
Units
Saved
Default**

S40 
General Bit-Mapped Options Status
-
-
*
105 (69h) (Non-MNP 10 models)
107(6Bh) (MNP 10 models)

S41
General Bit-Mapped Options Status
-
-
*
3

S42-S45 
Reserved
-
-

-

S46
Data Compression Control
-
-
*
138

S48 
V.42 Negotiation Control
-
-
*
7

S80 
Soft-Switch Functions
-
-

1

S82 
LAPM Break Control
-
-

128(40h)

S86 
Call Failure Reason Code
0-255
-

-

S91 
PSTN Transmit Attenuation Level
0-15
dBm

10 (Country dependent)

S92
Fax Transmit Attenuation Level
0-15
dBm

10 (Country dependent)

S95 
Result Code Messages Control
-
-
*
0

S201
Cellular Transmit Level
0-63

*
58

* Register value may be stored in one of two user profiles with the &W command.
oo Default values may be modified using ConfigurACE.










4.2.	S-REGISTER DEFINITIONS
S0 - Number of Rings to Auto-Answer
Sets the number of the rings required before the modem automatically answers a call. Setting this register to zero disables auto-answer mode.
Range:	0-255 rings
Default:	0 (US models)2 (W-class models)
S1 - Ring Counter
S1 is incremented each time the modem detects a ring signal on the telephone line. S1 is cleared if no rings occur over an eight second interval.
Range:	0-255 rings
Default:	0
S2 - Escape Character
S2 holds the decimal value of the ASCII character used as the escape character. The default value corresponds to an ASCII '+'. A value over 127 disables the escape process, i.e., no escape character will be recognized.
Range:	0-255, ASCII decimal
Default:	43 (+)
S3 - Carriage Return Character
Sets the command line and result code terminator character. Pertains to asynchronous operation only. 
Range:	0-127, ASCII decimal
Default:	13 (Carriage Return)
S4 - Line Feed Character
Sets the character recognized as a line feed. Pertains to asynchronous operation only. The Line Feed control character is output after the Carriage Return control character if verbose result codes are used
Range:	0-127, ASCII decimal
Default:	10 (Line Feed)
S5 - Backspace Character
Sets the character recognized as a backspace. Pertains to asynchronous operation only. The modem will not recognize the Backspace character if it is set to a value that is greater than 32 ASCII. This character can be used to edit a command line. When the echo command is enabled, the modem echoes back to the local DTE the Backspace character, an ASCII space character and a second Backspace character; this means a total of three characters are transmitted each time the modem processes the Backspace character.
Range:	0-32, ASCII decimal
Default:	8 (Backspace)
S6 - Wait Time for Dial Tone Before Blind Dialing, or After W Dial Modifier (W-Class Models) 
1.	Sets the length of time, in seconds, that the modem will wait before starting to dial after going off-hook when blind dialing. This operation, however, may be affected by some ATX options according to country restrictions. The Wait for Dial Tone call progress feature (W dial modifier in the dial string) will override the value in register S6. 
2.	For W-class models, S6 sets the length of time, in seconds, that the modem will wait for dial tone when encountering a W dial modifier before returning NO DIAL TONE result code.
The modem always pauses for a minimum of 2 seconds, even if the value of S6 is less than 2 seconds. 
Range:	2-255 seconds
Default:	2 (US models)4 (W-Class models)
S7 - Wait Time For Carrier After Dial, For Silence, or For Dial Tone After W Dial Modifier (US Models)
1.	Sets the length of time, in seconds, that the modem will wait for carrier before hanging up. The timer is started when the modem finishes dialing (originate), or 2 seconds after going off-hook (answer). In originate mode, the timer is reset upon detection of answer tone if allowed by country restrictions.
2.	Sets the length of time, in seconds, that modem will wait for silence when encountering the @ dial modifier before continuing with the next dial string parameter.
3.	For US models, S7 sets the length of time, in seconds, that the modem will wait for dial tone when encountering a W dial modifier before continuing with the next dial string parameter.
Range:	1-255 seconds
Default:	50
S8 - Pause Time For Dial Delay
Sets the time, in seconds, that the modem must pause when the , dial modifier is encountered in the dial string.
Range:	0-255 seconds
Default:	2
S9 - Carrier Detect Response Time
Sets the time, in tenths of a second, that the carrier must be present before the modem considers it valid and turns on RLSD. As this time is increased, there is less chance to detect a false carrier due to noise from the telephone line.
Range:	1-255 tenths of a second
Default:	6 (0.6 second)
S10 - Lost Carrier To Hang Up Delay
Sets the length of time, in tenths of a second, that the modem waits before hanging up after a loss of carrier. This allows for a temporary carrier loss without causing the local modem to disconnect. When register S10 is set to 255, the modem functions as if a carrier is always present.
The actual interval the modem waits before disconnecting is the value in register S10 minus the value in register S9. Therefore, the S10 value must be greater than the S9 value or else the modem disconnects before it recognizes the carrier.
Range:	1-255 tenths of a second
Default:	14 (1.4 seconds)
S11 - DTMF Tone Duration
Sets the duration of tones in DTMF dialing (US models only). This value has no effect on pulse dialing.
For W-class models, this parameter is a country parameter loaded by ConfigurACE.
Range:	50-255 milliseconds
Default:	95 (95 milliseconds)
S12 - Escape Prompt Delay (EPD)
Defines the maximum period, in fiftieths of a second, allowed between receipt of the last character of the three escape character sequence from the DTE and sending of the OK result code to the DTE. If any characters are detected during this time, the OK will not be sent. Note that sending of the OK result code does not affect entry into command mode. (See 3.1.3.)
Range:	0-255 1/50 of a second
Default:	50 (1 second)
S13 - Reserved
S14 - General Bit Mapped Options Status
Indicates the status of command options. 
Default: 138 (8Ah) (10001010b)
Bit 0 	This bit is ignored. 
Bit 1 	Command echo (En)
0 =	Disabled (E0)
1 =	Enabled (E1) (Default.)
Bit 2 	Quiet mode (Qn)
0 =	Send result codes (Q0) (Default.)
1 =	Do not send result codes (Q1)
Bit 3 	Result codes (Vn)
0 =	Numeric (V0) 
1 =	Verbose (V1) (Default.)
Bit 4 	Reserved
Bit 5 	Tone (T)/Pulse (P)
0 =	Tone (T) (Default.)
1 =	Pulse (P)
Bit 6 	Reserved
Bit 7 	Originate/Answer
0 =	Answer
1 =	Originate (Default.)
S15 - Reserved
S16 - General Bit Mapped Test Options Status
Indicates the test in progress status. 
Default:	0
Bit 0 	Local analog loopback
0 =	Disabled (Default.)
1 =	Enabled (&T1)
Bit 1 	Not used
Bit 2 	Local digital loopback
0 =	Disabled (Default.)
1 =	Enabled (&T3)
Bit 3 	Remote digital loopback (RDL) status 
0 =	Modem not in RDL (Default.)
1 =	RDL in progress
Bit 4 	RDL requested (AT&T6)
0 =	RDL not requested (Default.)
1 =	RDL requested (&T6)
Bit 5 	RDL with self test
0 =	Disabled (Default.)
1 =	Enabled (&T7)
Bit 6 	Local analog loopback (LAL) with self test
0 =	Disabled (Default.)
1 =	Enabled (&T8)
Bit 7 	Not used
S17 - Reserved
S18 - Test Timer
Sets the length of time, in seconds, that the modem conducts a test (commanded by &Tn) before returning to the command mode. If this register value is zero, the test will not automatically terminate; the test must be terminated from the command mode by issuing an &T0 or H command. When S18 is non-zero, the modem returns the OK message upon test termination.
Range:	0-255 seconds
Default:	0
S19 - AutoSync Bit Mapped Options
Defines the options for AutoSync operation (see &Q4 command). S19 must be set to the desired value before &Q4 is issued.
Default:	0
Bit 0 	Reserved
Bit 1 	BSC/HDLC format select
0 =	BSC selected (Default.)
1 =	HDLC selected
Bit 2 	Address detection enable/disable
0 =	DIsabled (Default.)
1 =	Enabled
Bit 3 	NRZI/NZI coding select
0 =	NRZI (Default.)
1 =	NZI
Bit 4 	Idle indicator select select
0 =	Mark idle (Default.)
1 =	Flag or sync idle
Bit 5 - 7 	Reserved
S20 - AutoSync HDLC Address or BSC Sync Character
Defines the HDLC address (S19 bit 1 = 1) or BSC Sync Character (S19 bit 1 = 0) for AutoSync operation (see &Q4 command). S20 must be set to the desired value before &Q4 is issued.
Range:	0-255 
Default:	0
S21 - V.24/General Bit Mapped Options Status
Indicates the status of command options.
Default:	4 (00000100b)
Bit 0 	Set by &Jn command but ignored otherwise.
0 =	&J0 (Default.)
1 =	&J1
Bit 1 	Reserved
Bit 2 	CTS behavior (&Rn)
0 =	CTS tracks RTS (&R0) 
1 =	CTS always on (&R1) (Default.)
Bit 3,4 	DTR behavior (&Dn)
0 =	&D0 selected (Default.)
1 =	&D1 selected
2 =	&D2 selected
3 =	&D3 selected
Bit 5 	RLSD (DCD) behavior (&Cn)
0 =	&C0 selected (Default.)
1 =	&C1 selected
Bit 6 	DSR behavior (&Sn)
0 =	&S0 selected (Default.)
1 =	&S1 selected
Bit 7 	Long space disconnect (Yn)
0 =	Y0 (Default.)
1 =	Y1
S22 - Speaker/Results Bit Mapped Options Status
Indicates the status of command options.
Default:	117 (75h) (01110101b)
Bit 0,1 	Speaker volume (Ln)
0 =	Off (L0)
1 =	Low (L1) (Default.)
2 =	Medium (L2)
3 =	High (L3)
Bit 2,3 	Speaker control (Mn)
0 =	Disabled (M0)
1 =	Off on carrier (M1) (Default.)
2 =	Always on (M2)
3 =	On during handshake (M3)
Bit 4,5,6 	Limit result codes (Xn)
0 =	X0
4 =	X1
5 =	X2
6 =	X3
7 =	X4 (Default.)
Bit 7	Reserved
S23 - General Bit Mapped Options Status
Indicates the status of command options.
Default:	55 (37h) (00110111b) (US models.)183 (B7h) (10110111b) (W-class models.)
Bit 0	Grant RDL
0 =	RDL not allowed (&T5)
1 =	RDL allowed (&T4) (Default.)
Bit 1,2,3 	DTE Rate
0 =	0 - 300 bps
1 =	600 bps
2 =	1200 bps
3 =	2400 bps (Default.)
4 =	4800 bps
5 =	9600 bps
6 =	19200 bps
7 =	38400 bps or higher
Bit 4,5 	Assumed DTE parity 
0 =	even
1 =	not used
2 =	odd
3 =	none (Default.)
Bit 6,7 	Guard tone (&Gn)
0 =	None (&G0) (Default for US models.)
1 =	None (&G1)
2 =	1800 Hz (&G2) (Default for W-class models.)
S24 - Sleep Inactivity Timer
Sets the length of time, in seconds, that the modem will operate in normal mode with no detected telephone line or DTE line activity before entering low-power sleep mode. The timer is reset upon any DTE line or telephone line activity. If the S24 value is zero, neither DTE line nor telephone inactivity will cause the modem to enter the sleep mode. 
Range:	0-255 seconds
Default:	0
S25 - Delay To DTR
Sets the length of time that the modem will ignore DTR for taking the action specified by &Dn. Its units are seconds for synchronous modes and one hundredths of a second for other modes.
Range:	0-255 (1 second for synchronous modes 1; 0.01 second otherwise )
Default:	5
S26 - RTS to CTS Delay 
Sets the time delay, in hundredths of a second, before the modem turns CTS ON after detecting an OFF-to-ON transition on RTS when &R0 is commanded. Pertains to synchronous operation only. 
Range:	0-255 hundredths of a second
Default:	1
S27 - Bit Mapped Options Status
Indicates the status of command options.
Default:	73 (49h) (01001001b) (US models).9 (09h) (00001001b) (W-class models.)
Bit 0,1,3 	Synchronous/asynchronous selection (&Mn/&Qn)
3	1	0	
0	0	0	 =	&M0 or &Q0
0	0	1	=	&M1 or &Q1
0	1	0	 =	&M2 or &Q2
0	1	1	 =	&M3 or &Q3
1	0	0	=	&Q4
1	0	1	 =	&Q5 (Default.)
1	1	0	 =	&Q6 
Bit 2 	Leased line control (&Ln)
0 =	Dial up line (&L0) (Default.)
1 =	Leased line (&L1)
Bit 4,5 	Internal clock select (&Xn)
0 =	Internal clock (&X0) (Default.)
1 =	External clock (&X1)
2 =	Slave clock (&X2)
Bit 6 	CCITT/Bell mode select (Bn)
0 =	CCITT mode (B0) (Default for W-class models.)
1 =	Bell mode (B1) (Default for US models.)
Bit 7 - Reserved
S28 - Bit Mapped Options Status
Default:	0
Bit 0 	Reserved
Bit 1 	V.23 split screen direction 
0 =	75 Tx /1200 Rx (%F1) (Default.)
1 =	1200 Tx /75 Rx (%F2)
Bit 2 	Reserved (always 0).
Bit 3,4 	Pulse dialing (&Pn)
0 =	39%-61% make/break ratio at 10 pulses per second (&P0) (Default.)
1 =	33%-67% make/break ratio at 10 pulses per second (&P1)
2 =	39%-61% make/break ratio at 20 pulses per second (&P2)
3 =	33%-67% make/break ratio at 20 pulses per second (&P3)
Bit 5 	Reserved
Bit 6-7 	MNP Link Negotiation Speed (*Hn)
0 =	Link negotiation at highest speed (*H0) (Default.)
1 =	Link negotiation at 1200 bps (*H1)
2=	Link negotiation at 4800 bps (*H2)
S29 - Flash Dial Modifier Time
Sets the length of time, in units of 10 ms, that the modem will go on-hook when it encounters the flash (!) dial modifier in the dial string. The time can be limited as it is a country dependent parameter.
Range:	0-255 10 ms intervals
Default:	0 (disabled)
S30 - Disconnect Inactivity Timer
Sets the length of time, in tens of seconds, that the modem will stay online before disconnecting when no data is sent or received. In error-correction mode, any data transmitted or received will reset the timer. In other modes, any data transmitted will reset the timer. The timer is inoperative in synchronous mode. 
Range:	0-255 tens of seconds (0-2550 seconds)
Default:	0 (disabled)
S31 - Bit Mapped Options Status
Default:	2 (00000010b)
Bit 0 	Reserved
Bit 1 	Controls auto line speed detection (Nn) 
0 =	Disabled (N0)
1 =	Enabled (N1) (Default.)
Bit 2,3 	Controls error correction progress messages (Wn)
0 =	DTE speed only (W0) (Default.)
1 =	Full reporting (W1)
2 =	DCE speed only (W2)
Bit 3 	Reserved
Bit 4-7 	Reserved
S32 - XON Character
Sets the value of the XON character.
Range:	0-255, ASCII decimal
Default:	17 (11h)
S33 - XOFF Character
Sets the value of the XOFF character.
Range:	0-255, ASCII decimal
Default:	19 (13h)
S34-S35 - Reserved
S36 - LAPM Failure Control
Default:	7 (00000111b)
Bit 0-2 	This value indicates what should happen upon a LAPM failure. These fallback options are initiated immediately upon connection if S48=128. If an invalid number is entered, the number is accepted into the register, but S36 will act as if the default value has been entered.
0 =	Modem disconnects.
1 =	Modem stays on-line and a Direct mode connection is established.
2 =	Reserved.
3 =	Modem stays on-line and a Normal mode connection is established.
4 =	An MNP connection is attempted and if it fails, the modem disconnects.
5 =	An MNP connection is attempted and if it fails, a Direct mode connection is established.
6 =	Reserved.
7 =	An MNP connection is attempted and if it fails, a Normal mode connection is established. (Default.)
Bit 3-7 	Reserved
S37 - Desired Line Connection Speed
Default:	0
Bit 0-4 	Desired line connection speed. This is interlinked with the Fn command. If an invalid number is entered, the number is accepted into the register, but S37 will act as if the default value has been entered.
0 =	Attempt auto mode connection (F0). (Default.)
1-3 =	Attempt to connect at 300 bps (F1).
4 =	Reserved.
5 =	Attempt to connect at V.22 1200 bps (F4).
6 =	Attempt to connect at V.22 bis 2400 bps (F5).
7 =	Attempt to connect at V.23 (F3).
8 =	Attempt to connect at V.32 bis/V.32 4800 bps (F6).
9 =	Attempt to connect at V.32 bis/V.32 9600 bps (F8).
10 =	Attempt to connect at V.32 bis 12000 bps (F9).
11 =	Attempt to connect at V.32 bis 14400 bps (F10).
12 =	Attempt to connect at V.32 bis 7200 bps (F7).
15=	Attempt to connect at V.FC 14400 bps (F13).
16=	Attempt to connect at V.FC 16800 bps (F14).
17=	Attempt to connect at V.FC 19200 bps (F15).
18=	Attempt to connect at V.FC 21600 bps (F16).
19=	Attempt to connect at V.FC 24000 bps (F17).
20=	Attempt to connect at V.FC 26400 bps (F18).
21=	Attempt to connect at V.FC 28800 bps (F19).

Bit 5-7 	Reserved
S38 - Delay Before Forced Hang Up
This register specifies the delay between the modem's receipt of the H command to disconnect (or ON-to-OFF transition of DTR if the modem is programmed to follow the signal), and the disconnect operation. Applicable to error-correction connection only. This register can be used to ensure that data in the modem buffer is sent before the modem disconnects.
1.	If S38 is set to a value between 0 and 254, the modem will wait that number of seconds for the remote modem to acknowledge all data in the modem buffer before disconnecting. If time expires before all data is sent, the NO CARRIER result code will be issued to indicate that data has been lost. If all data is transmitted prior to time-out, the response to the H0 command will be OK.
2.	If S38 is set to 255, the modem does not time-out and continues to attempt to deliver data in the buffer until the connection is lost or the data is delivered.
Range:	0-255 seconds
Default:	20
S39 - Flow Control Bit Mapped Options Status
Default:	3 (00000011b)
Bits 0-2 	Status of command options
0 =	No flow control 
3 =	RTS/CTS (&K3) (Default.)
4 =	XON/XOFF (&K4)
5 =	Transparent XON (&K5)
6 =	Both methods (&K6)
Bits 3-7 	Reserved
S40 - General Bit Mapped Options Status
Indicates the status of command options.
Default:	105 (69h) (01101001b) 
Bit 0 - 1	 MNP Extended Services (-Kn)
0 =	Disable extended services (-K0) (Default for non-MNP 10 models.)
1 =	Enable extended services (-K1) (Default for MNP 10 models.)
2 =	Enable extended services (-K2)
Bit 2	Power Level Adjustment for Cellular Use ()Mn)
0 =	Auto-adjustment ()M0) (Default.)
1 =	Force adjustment ()M1)
Bits 3-5 	Break Handling (\Kn)
0 =	\K0
1 =	\K1
2 =	\K2
3 =	\K3
4 =	\K4
5 =	\K5 (Default.)
Bits 6-7 	MNP block size (\An)
0 =	64 chars (\A0)
1 =	128 chars (\A1) (Default.)
2 =	192 chars (\A2)
3 =	256 chars (\A3)
S41 - General Bit Mapped Options Status
Indicates the status of command options.
Default:	131 (10000011b)
Bits 0 -1 	Compression selection (%Cn)
0 =	Disabled (%C0)
1 =	MNP 5 (%C1)
2 =	V.42 bis (%C2)
3 =	MNP 5 and V.42 bis (%C3) (Default.)
Bit 2, 6	Auto retrain and fallback/fall forward (%En)
	Bit 6	Bit 2
	0 	0	=	Retrain and fallback/fall forward disabled (%E0) (Default.)
	0	1	=	Retrain enabled (%E1)
	1	0	=	Fallback/fall forward enabled (%E2) 
Bit 3 	Modem-to-modem flow control
0 =	Disabled (\G0) (Default.)
1 =	Enabled (\G1)
Bit 4 	Block mode control (\Ln)
0 =	Stream mode (\L0) (Default.)
1 =	Block mode (\L1)
Bit 5 	Reserved
Bit 7 	Enable fallback to V.22bis/V.22 (-Qn)
0 =	Disabled (-Q0)
1 =	Enabled (-Q1) (Default.)
S46 - Data Compression Control
Controls selection of compression. The following actions are executed for the given values:
Range:	136 or 138
Default:	138
S46=136	Execute error correction protocol with no compression.
S46=138	Execute error correction protocol with compression. (Default.)
S48 - V.42 Negotiation Action
The V.42 negotiation process determines the capabilities of the remote modem. However, when the capabilities of the remote modem are known and negotiation is unnecessary, this process can be bypassed if so desired.
Range:	0, 7, or 128 If an invalid number is entered, it is accepted into the S-Register, but S48 will act as if 128 has been entered.
Default:	7
S48=0	Disable negotiation; bypass the detection and negotiation phases; and proceed with LAPM.
S48=7	Enable negotiation. (Default.)
S48=128 	Disable negotiation; bypass the detection and negotiation phases; and proceed at once with the fallback action specified in S36. Can be used to force MNP.
S80 - Soft-Switch Functions
S80 is applicable only if the EPROM has been so customized by ConfigurACE. S80 bit 5 is the soft equivalent of the AT/V25B external bus bit mapped hardware input signal.
Default:	1
Bits 0-2 	Reserved (bit 0 must always be a 1)
Bit 3 	Reserved 
Bit 4 	Reserved 
Bit 5 	V.25 bis/AT command mode select (AT/V25B signal)
0 =	AT selected
1 =	V.25 bis selected
Bit 6 	Reserved 
Bit 7 	Reserved 
S82 - Break Handling Options
S82 is for compatability purposes only, changing this register will not have any affect.
S86 - Call Failure Reason Code
When the modem issues a NO CARRIER result code, a value is written to this S-Register to help determine the reason for the failed connection. S86 records the first event that contributes to a NO CARRIER message. The cause codes are:
Range:	0, 4, 5, 9, 12, 13, or 14
Default:	
S86=0	Normal disconnect, no error occurred.
S86=4	Loss of carrier.
S86=5 	V.42 negotiation failed to detect an error-correction modem at the other end.
S86=9 	The modems could not find a common protocol.
S86=12	Normal disconnect initiated by the remote modem.
S86=13 	Remote modem does not respond after 10 re-transmissions of the same message.
S86=14 	Protocol violation.
S91 - PSTN Transmit Attenuation Level
Sets the transmit attenuation level from 0 to 15 dBm for the PSTN mode, resulting in a transmit level from 0 to -15dBm, In some countries, the transmit level may not be changed and there are checks to prevent transmit attenuation level change using ConfigurACE.
Range:	0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level.)
Default:	10 (-10 dBm transmit level.)
S92 - Fax Transmit Attenuation Level
Sets the transmit attenuation level from 0 to 15 dBm for the fax mode, resulting in a transmit level from 0 to -15dBm. In some countries, the transmit level may not be changed and there are checks to prevent transmit attenuation level change using ConfigurACE. 
Range:	0 to 15 dBm (Corresponding to 0 to -15 dBm transmit level.)
Default:	10 (-10 dBm transmit level.)
S95 - Extended Result Codes
The bits in this register can be set to override some of the Wn command options. A bit set to a 1 in this register will enable the corresponding result code regardless of the Wn setting. Also, refer to Table 3-1. 
Default:	0
Bit 0 	CONNECT result code indicates DCE speed instead of DTE speed.
Bit 1 	Append/ARQ to CONNECT XXXX result code in error-correction mode (XXXX = rate; see Table31).
Bit 2 	Enable CARRIER XXXX result code (XXXX = rate; see Table 3-1).
Bit 3 	Enable PROTOCOL XXXX result code (XXXX = protocol identifier; see Table 3-1).
Bit 4 	Reserved.
Bit 5 	Enable COMPRESSION result code (XXXX = compression type; see Table 3-1).
Bit 6 	Reserved.
Bit 7 	Reserved.
S201 - Cellular Transmit Level
The bits in this register are set by the @Mn and :En commands to support cellular connections.
Default:	20h
Bits 0 - 4 	Initial Cellular Power Level Setting (@Mn; default = @M0)
Bit 5 	Compromise Equalizer Enable Command (:En; default = E1)
Bit 6 	Reserved.
Bit 7 	Reserved.
This page is intentionally blank.
5.	V.25 BIS COMMAND SET
Modem operation may be controlled through the use of the V.25 bis command set. This is implemented by command, response, and circuit signalling providing addressed call and/or answer via circuit 108/2 in accordance with V.25 bis. V.25 bis is a CCITT recommendation that defines a method of exchanging commands and indications across a DTE interface (EIA-232/V.24). V.25 bis defines modem behavior only while the modem is disconnected from the line, or while the modem is off-hook and is attempting to establish a connection. The following terms are used in the V.25 bis description.
COMMAND:	An instruction issued by the DTE to the modem as part of the automatic calling procedure.
INDICATION:	A response message issued by the modem to the DTE as part of the automatic calling procedure.
PARAMETER:	A variable which may accompany commands or indications. In general, more than one parameter may be used in a command or indication.
5.1.	DTE/DCE INTERCHANGE CIRCUITS
Communication between the DTE and modem is half duplex.
The DTE is the 'master' and the modem is the 'slave'. Only the DTE initiates V.25 bis communications, while the modem just responds.
When the modem is in data transfer mode after the connection has been established, the modem is no longer in V.25 bis mode. 
During automatic calling and answering procedures, RLSD (CT109) follows the condition of RTS (CT106).
5.2.	FORMATS FOR COMMANDS AND INDICATIONS
The modem will accept commands in asynchronous mode. The command set conforms to the CCITT recommendation with one extension. 
5.2.1.	Asynchronous Signalling
The format for the asynchronous character oriented format is:
MESSAGE <CR> <LF>
The default data rate for commands and parameters is the maximum data rate permitted by the modem.
The message field can contain between 3 and 60 8-bit characters (7-bit IA5 per T.50 plus odd parity per V.4) which define the parameters. Each frame can contain only one command followed by multiple parameters as will fill the limit.
Command/Indication Exchange Protocol
The modem will ignore any command issued with incorrect parity. The modem will ignore a command issued from the DTE before it has completed execution of the previous command and given an appropriate response. The modem will ignore a command from the DTE while it is sending an indication to the DTE. 
A command received with a message field of less than 3 characters or more than 60 characters is regarded as an error in the message and will result in the negative acknowledgment of the command by the return of the invalid message (INV).
DTE Adaption
The modem performs an autobaud/autoparity/autolength function on the first characters received following a Power-On Reset or <cntl> Z. If the modem receives a <CR> <LF> sequence, it is able to calculate the speed, parity, and the word length. If the modem receives only a <CR> character, it will calculate the speed but retain the existing parity and word length values. If the modem receives neither of these characters, it will continue to use the existing values for speed, parity, and word length. If no previous speed, parity, and/or length information is available, the modem defaults to 7-bit even operation at 9600 bps. The autolength/autoparity facility is capable of detection of 7- or 8-bit characters of even, odd, or no parity with one stop bit. The modem then accepts and sends characters according to this selection of speed, parity, and length. The adaption algorithm is re-initialized by the next OFF-to-ON transition of CT108/2.
In HDLC mode, the modem detects when DTE sends in NRZ or NRZI format, and adjusts its indication format accordingly. 
5.2.2.	V.25 bis Escape Detection Scheme
An escape character sequence function for V.25 bis asynchronous operation operates exactly like the AT escape character sequence. (See Section 3.1.)
5.3.	STANDARD V.25 BIS COMMANDS
The following commands are implemented, and parameters applicable to each command are noted following the description of the command.
CIC - Connect Incoming Call
The modem goes on-line in answer mode cancelling any DIC command previously issued. If no incoming call is present, the modem issues the invalid (INV) message.
CRI - Call Request with Number and Identification
The modem goes on-line, dials according to the dial string entered, and attempts to establish a connection in the same manner as the CRN command except a ";" character and an identification character string can be inserted after the dial string. However, everything after the ";" character is ignored, i.e., the identification is not sent. 
x..x	Dial string: a string of dial characters (see CRN).
;	Separator: inserted between dial string and identification.
Example:
CRN 234-1234;4567VAL
CRN - Call Request with Number
The modem goes on-line, dials according to the dial string entered, and attempts to establish a connection. The following dial modifiers are valid:
0-9	Digits 0 to 9.
*	The 'star' digit: Tone dialing only.
#	The 'gate' digit: Tone dialing only.
T	Select tone dialing: Affects current and subsequent dialing.
P	Select pulse dialing: Affects current and subsequent dialing.
<	Short dial pause: Period controlled by S8: The modem will pause before dialing the digits following <.
=	Long dial pause: Period twice as long as the short dial pause. 
:	Wait for dial tone: The modem will wait for dial tone before dialing the digits following :.
&	Flash: The modem will go off-line according to the value of S30.
^	Disable calling tone transmission: Applicable to current dial attempt only.
Example:
CRN 234-1234VAL
CRS - Call Request with Memory Address
The modem goes on-line, dials according to the dial string entered in the dial string memory addressed (see PRN), and attempts to establish a connection.
0-19	Dial string memory address.
Example:
CRS 1 or CRS1345-5678VAL
DIC - Disregard Incoming Call
The modem, though configured for auto-answer, will disregard the incoming call. If there is no incoming call or auto-answer is not enabled, the modem will issue the INV message.
PRI - Program Identification
The modem returns VAL indication only.
PRN - Program Number
The modem stores the dial string specified into the dial string memory referenced.
0-19	Dial string memory address.
;	Separator: Inserted between dial string memory address and dial string.
x..x	Dial string: A string of dial characters: 0-9 * # T P = &: /: characters accepted: An empty string clears the identification memory referenced.
Example:
PRN 1;345-5678VAL
RLD - List Request of Delayed Call Numbers
The modem returns the list of numbers which have been delayed by country dependent blacklisting procedures. 
Example:
NO.  - PHONE NUMBER - DELAY----- ----------------------
LSD 1;   7503857609     2LSD 2;   1349579050     1LSD 3;   4146949385     1LSD 4;   3479784564     3LSD 5;   5529685740     1VAL
RLF - List Request of Forbidden Numbers
The modem returns the list of numbers which have been blacklisted by country dependent blacklisting procedures.
Example:
NO.  - PHONE NUMBER----- ----------------------
LSF 1; 6209567485LSF 2; 4227458945LSF 3; 2137874644LSF 4; 5256677014LSF 5; 0114418172323LSF 6; 7228309VAL
RLI - List Request of Identification Numbers
The modem returns the VAL message only.
Example:
LSI 1; 8183400VAL
RLN - List Request of Stored Numbers (Dial Strings)
The modem returns the dial string or the list of dial strings according to the parameter supplied.
0-4	Dial string memory address: If no address is supplied, a full list of all stored dial strings will be returned.
Examples:
LSN 4; 19:1=722340	Response to RLN4VAL

LSN 0;		Response to RLNLSN 1;LSN 2;LSN 3;19:1=7223400LSN 4; 93256642VAL
5.4.	EXTENDED V.25 BIS COMMAND
There is one extension to the standard V.25 bis command set.
CNL - Local Configuration
Any AT command string may be entered as a parameter of this command. The format is:
CNL<AT command>
Example:
CNLS0=2
5.5.	STANDARD V.25 BIS INDICATIONS
The modem provides the indications/responses listed, and parameters applicable to each message are noted following the description of the response.
CFI - Call Failure Indication
The modem sends this message when a call fails to connect. A parameter is included to give the reason for the failure.
AB	No dial tone or the call abort timer expired with no call progress tone detected or during handshaking after answer tone detected.
CB	Local circuit busy (phone off-hook).
ET	Busy (engaged tone) detected.
FC	Requested number on forbidden call list (call not placed).
NS	No number stored at dial string memory requested (call not placed).
NT	Ringback detected: Ringback stopped: Call abort timer expired with no answer tone detected.
RT	Ringback detected: Call abort timer expired with ringback still detected.
CNX - Connect
The modem returns this message when a connection has been established. The message may be followed by a value indicating the connection speed.
Example:
CNX 9600
DLC - Delayed Call
The modem returns this message when a call fails to connect and the number dialed is considered 'delayed'. The message indicates the delay (in minutes) before the call may be re-attempted as shown in the following example:
DLCn	(n = delay in minutes)
This message will be preceded by the message indicating call failure.
INC - Incoming Call
The modem sends this message when incoming ringing is detected on the line.
INV - Invalid Command
The modem sends this message if the command line contains a syntax error, or if the modem is unable to execute the command.
VAL - Valid Command
The modem sends this message when it successfully executes the command issued and there is no other applicable response (message or circuit transition).
This page is intentionally blank.
6.	FAX CLASS 1 COMMANDS
6.1.	FAX I/O PROCESSING
The fax I/O interface supports asynchronous serial and parallel interfaces. The interface rate is 19200 bps. The character format is 8 bits data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered. Flow control using XON/XOFF (DC1/DC3) or RTS/CTS is provided.
Unique control character strings are identified, filtered, or reinserted into the I/O data stream. These control characters and their resultant action are described below.
6.1.1.	DTE-to-Modem Transmit Data Stream
	Characters Detected	Action Taken
	<DLE><data>	Delete <DLE><data> characters.
	<DLE><ETX>	Recognize as a string terminator and take appropriate action.
	<DLE><DLE>	Replace with single <DLE> character.

6.1.2.	Modem-to-DTE Receive Data Stream

	Characters Detected	Action Taken
	<DLE>	Insert extra <DLE> ahead of <DLE>.
The modem also identifies the end of a frame by inserting <DLE><ETX> into the data stream after the FCS bytes. 
6.1.3.	Fax Mode Selection
Fax class 1 commands are identified in Table 6-1. Fax modes and rates are determined by the AT+F commands as described in Section 6.2.
Table 6-1.  Fax Class 1 Commands
Command
Function

Service Class ID


+FCLASS=
Service Class

Fax Class 1 Commands


+FAE=n
Data/Fax Auto Answer

+FTS=n
Stop Transmission and Wait

+FRS=n
Receive Silence

+FTM=n
Transmit Data

+FRM=n
Receive Data

+FTH=n
Transmit Data with HDLC Framing

+FRH=n
Receive Data with HDLC Framing 


6.1.4.	Fax Origination
Origination of fax calls is made using the ATD command. Upon completion of the dial function, a calling tone at 1100 Hz is transmitted, with a cadence of 0.5 seconds on and 3 seconds off. The modem automatically enters mode +FRH=3 and sends the CONNECT message to the DTE when FSK flags are detected from the remote.
6.1.5.	Fax Answering
Answering of fax calls is identical to answering of data calls with the exception that the modem enters the fax handshaking mode instead of the data handshaking mode after going off-hook. If +FAE=0, the modem, after sending answer tone, automatically enters fax mode (+FTH=3), sends the CONNECT message to the DTE, and starts sending FSK flags. If +FAE=1, the modem determines whether the caller is a data modem or fax modem and sends the DATA or FAX result code, respectively, to the DTE. 
6.1.6.	Fax Control Transmission
Fax control transmission is initiated by the +FTH=n command. After this command is issued, the modem generates the CONNECT message and transmits carrier in the modulation scheme specified by the parameter n. The modem then transmits HDLC flags for a minimum of 1 second. The modem continues to transmit the HDLC flags until it receives a character from the DTE.
When characters are received from the DTE, the modem adds start and end flags, performs zero-bit insertion, generates FCS, and deletes <DLE><chr> character pairs before transmitting the characters to the remote fax machine. Each <DLE><DLE> sequence is transmitted as a single <DLE>. <DLE><ETX> is considered as the end of frame marker and is not transmitted. All data received from the DTE after <DLE><ETX> is ignored by the modem until the modem generates either the CONNECT, OK, or ERROR result code.
If no more data is in the transmit buffer and the final bit was a 1 (bit 4 of the second byte received from the DTE), the modem generates the OK result code and returns to the command mode. If the final bit was a 0, the modem generates the CONNECT message and waits for further data from the DTE while transmitting HDLC flags. If no more data is received before 5 seconds elapse, the modem drops carrier, goes on-hook, and generates the ERROR result code.
6.1.7.	Fax Control Reception
Fax control reception is initiated using the AT+FRH=n command. After this command is issued, the modem looks for carrier in the modulation scheme specified by the parameter n. If no carrier is detected before the period of time specified by register S7 expires, the modem generates the NO CARRIER message and returns to command mode. If carrier is detected that is not the one specified by the parameter n, the modem generates the +FCERROR message and returns to the command mode. If the specified carrier is detected, the modem generates the CONNECT message and enters the HDLC receive mode.
In HDLC receive mode, the modem receives HDLC frames from the remote fax machine, strips the flags, performs zero-bit deletion, performs error checking, and handles <DLE><chr> character pairs before passing the data to the DTE. The modem prefixes each <DLE> character with another <DLE> character before sending it to the DTE. After the last byte in the frame, the modem sends <DLE><ETX> to the DTE marking the end of the frame. The modem then generates either the OK message if no errors were detected or the ERROR message if errors were detected (FCS is incorrect), and returns to command mode.
While in command mode, the modem continues to receive data in the selected modulation scheme, and sends the data after sending the CONNECT message to the DTE when the DTE reissues the +FRH command with the same parameter. If the DTE issues the +FRH command with a different parameter, the modem clears all buffers and proceeds as described previously.
If carrier is lost while in command mode and the DTE reissues the +FRH command with the same parameter, and there is no data in the buffer, the modem sends the ERROR result code to the DTE and returns to the command mode. If there is data in the buffer, the modem sends the next frame of buffered data to the DTE, followed by <DLE><ETX>, and either the ERROR result code if errors were detected or the OK result code if no errors were detected. The modem then returns to command mode.
The modem concludes an error is detected if carrier is lost for any period of time during or before the reception of a frame. If carrier is lost for a time period longer than the time specified by the register S10, the modem finishes delivering the data in the receive buffer (if any) to the DTE, sends <DLE><ETX>, generates the ERROR message, and returns to command mode. All subsequent data received from the remote is discarded.
If the modem detects a frame abort sequence (seven consecutive ones with no zero insertion) while it is waiting for a frame beginning flag (it was receiving HDLC flags), it will wait for the HDLC flags again until either carrier is lost, or the DTE aborts the process by sending an abort character or by dropping DTR with &D2 in effect. If the frame abort sequence is detected while the modem is receiving a frame it finishes delivering the data in the receive buffer (if any) to the DTE, sends <DLE><ETX>, generates the ERROR message, and returns to command mode. The modem keeps looking for HDLC flags followed by more data from the remote, with the selected modulation scheme.
If the modem detects a receive buffer overflow condition, it concludes that there was an FCS error in that frame. The modem will receive more frames only if a starting flag is detected and there is room in the receive buffer. If a starting flag is detected and there is no room in the buffer, the modem discards all data in that frame.
If the modem receives any character from the DTE after the +FRH command (except flow control characters if software flow control is in effect), or if the modem detects a high-to-low transition of the DTR signal while &D1 is in effect, it sends <DLE><ETX> to the DTE, generates OK result code, and returns to command mode. The receive buffer is cleared and all data received from the remote is discarded. If the modem detects a DTR drop while &D2 is in effect, it goes on-hook, sends <DLE><ETX> to the DTE, generates OK result code, and returns to command mode. If the modem detects a DTR drop while &D3 is in effect, the modem performs a warm reset.
6.1.8.	Fax Data Transmission
Fax data transmission is initiated by the AT+FTM=n command. After this command is issued, the modem generates the CONNECT message and transmits carrier in the modulation scheme specified by the parameter n. The modem then transmits constant 1 bits for a minimum of one second and continues to transmit constant 1 bits until it receives a character from the DTE.
When data is received from the DTE, the modem deletes start and stop bits and deletes all <DLE><chr> character pairs before transmitting the data to the remote. Each <DLE><DLE> sequence is transmitted as a single <DLE>. <DLE><ETX> is considered as the end of stream marker, and is not transmitted. All data received from the DTE after the <DLE><ETX> is ignored by the modem until the modem generates either the CONNECT, OK, or ERROR result code.
If no more data is in the transmit buffer, and the last transmitted character was not an ASCII NULL, the modem generates the OK result code and returns to the command mode. If the last character transmitted was an ASCII NULL, the modem generates the CONNECT message to the DTE and waits for further data from the DTE while transmitting NULLs to the remote. If more data is received before five seconds elapse, the modem continues to transmit the data as described in the previous paragraph. If five seconds elapse and no data is received from the DTE, the modem drops carrier, goes on-hook, and generates the ERROR result code.
6.1.9.	Fax Data Reception
Fax data reception is initiated using the AT+FRM=n command. After this command is issued, the modem looks for carrier in the modulation scheme specified by the parameter n. If no carrier is detected before the period of time specified by register S7 expires, the modem generates the NO CARRIER message and returns to command mode. If carrier is detected that is not the one specified by the parameter n, the modem generates the +FCERROR message and returns to the command mode. If the specified carrier is detected, the modem generates the CONNECT message and enters the data receive mode.
While in data receive mode, the modem receives data from the remote, adds start and stop bits, and handles <DLE><chr> character pairs before passing the data to the DTE. The modem prefixes each <DLE> character with another <DLE> character before sending it to the DTE.
If carrier is lost for a time period longer than the time specified by the register S10, the modem finishes delivering the data in the receive buffer (if any) to the DTE, sends <DLE><ETX>, generates the NO CARRIER result code, and returns to the command mode. All subsequent data received from the remote is discarded.
If the modem detects a receive buffer overflow condition, it stops receiving from the remote until there is room in the receive buffer. The modem informs the DTE of the buffer overflow after it sends to the DTE the last character that was stored in the buffer before the overflow occurred.
If the modem receives any character from the DTE after the +FRM command (except flow control characters if software flow control is in effect), or if the modem detects a high-to-low transition of the DTR signal while &D1 is in effect, it sends <DLE><ETX> to the DTE, generates the OK result code, and returns to command mode. The receive buffer is cleared and all data received from the remote is discarded. If loss of DTR is detected while &D2 is in effect, the modem goes on-hook, sends <DLE><ETX> followed by OK result code to the DTE, and returns to command mode. If the modem detects a DTR drop while &D3 is in effect, the modem performs a warm reset.
6.2.	COMMANDS
+FCLASS=n - Select Service Class
+FCLASS=n command sets the active service class.
Parameters: 0-2 
Command options:
+FCLASS=0	Select Data Mode (Default.)
+FCLASS=1	Select Facsimile Class 1
+FCLASS=2	Select Facsimile Class 2
+F<command>? - Report Active Configuration
+F<command>? interrogates the modem to determine the active configuration.
Typical responses are:
+FAE?	0 if auto answer is disabled; 1 if auto answer is enabled
+FCLASS?	0 if in data mode; 1 if in fax class 1; 2 if in fax class 2
+F<command>=? - Report Operating Capabilities
+F<command>=? can be used to determine the operating capabilities of the modem.
Typical responses are:
+FAE=?	0 or 1
+FCLASS=?	0, 1, or 2
+FTM=?	24, 48, 72, 96 (9600 bps version)
+FRM=?	24, 48, 72, 96 (9600 bps version)
+FTM=?	24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 (14400 bps version)
+FRM=?	24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 (14400 bps version)
+FAE=n - Data/Fax Auto Answer
+FAE=n allows the DTE to either restrict answering to class 1, or to automatically detect whether the calling station is a fax class 1 modem or data modem, and answer accordingly. 
Parameters: n = 0 or 1
Command options:
n = 0	Disable data/fax auto answer mode. The modem answers as a fax modem only. (Default.).
n = 1	Enable data/fax auto answer mode. The modem answers as a fax or data modem.
After a data (not fax) connection is acheived (indicated by the DATA result code), the DTE must issue an ATO command to cause the modem to go on-line.
+FTS=n - Stop Transmission and Wait
+FTS=n causes the modem to terminate a transmission and wait for n 10-ms intervals before responding with the OK result code. An ERROR response code results if this command is issued while the modem is on-hook.
+FRS=n - Receive Silence
+FRS=n causes the modem to report back to the DTE with an OK result code after n 10 ms-intervals of silence have been detected on the line. This command is aborted if any character is received from the DTE. The modem discards the aborting character and issues an OK result code. An ERROR response code results if this command is issued while the modem is on-hook.
+FTM=n - Transmit Data
+FTM=n causes the modem to transmit data using the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook.
Parameters: See Command options
Command options:
	+FTM=24	V.27 ter 2400 bps	+FTM=48	V.27 ter 4800 bps	+FTM=72	V.29 7200 bps	+FTM=73	V.17 7200 bps long	+FTM=74	V.17 7200 bps short 	+FTM=96	V.29 9600 bps	+FTM=97	V.17 9600 bps long	+FTM=98	V.17 9600 bps short	+FTM=121	V.17 12000 bps long	+FTM=122	V.17 12000 bps short	+FTM=145	V.17 14400 bps long	+FTM=146	V.17 14400 bps short
+FRM=n - Receive Data
+FRM=n causes the modem to enter the receiver mode using the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook.
Parameters: See Command options
Command options:
	+FRM=24	V.27 ter 2400 bps	+FRM=48	V.27 ter 4800 bps	+FRM=72	V.29 7200 bps 	+FRM=73	V.17 7200 bps long 	+FRM=74	V.17 7200 bps short 	+FRM=96	V.29 9600 bps 	+FRM=97	V.17 9600 bps long	+FRM=98	V.17 9600 bps short	+FRM=121	V.17 12000 bps long	+FRM=122	V.17 12000 bps short	+FRM=145	V.17 14400 bps long	+FRM=146	V.17 14400 bps short
+FTH=n - Transmit Data with HDLC Framing
+FTH=n causes the modem to transmit data using HDLC protocol and the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook.
Parameters: See Command options.
Command options:
	+FTH=3	V.21 channel 2 300 bps	+FTH=24	V.27 ter 2400 bps	+FTH=48	V.27 ter 4800 bps	+FTH=72	V.29 7200 bps	+FTH=73	V.17 7200 bps long 	+FTH=74	V.17 7200 bps short 	+FTH=96	V.29 9600 bps	+FTH=97	V.17 9600 bps long	+FTH=98	V.17 9600 bps short	+FTH=121	V.17 12000 bps long	+FTH=122	V.17 12000 bps short	+FTH=145	V.17 14400 bps long	+FTH=146	V.17 14400 bps short
+FRH=n - Receive Data with HDLC Framing
+FRH=n causes the modem to receive frames using HDLC protocol and the modulation defined below. An ERROR response code results if this command is issued while the modem is on-hook.
Parameters: See Command options.
Command options:
	+FTH=3	V.21 channel 2 300 bps	+FRH=24	V.27 ter 2400 bps	+FRH=48	V.27 ter 4800 bps	+FRH=72	V.29 7200 bps	+FRH=73	V.17 7200 bps long 	+FRH=74	V.17 7200 bps short 	+FRH=96	V.29 9600 bps	+FRH=97	V.17 9600 bps long	+FRH=98	V.17 9600 bps short	+FRH=121	V.17 12000 bps long	+FRH=122	V.17 12000 bps short	+FRH=145	V.17 14400 bps long	+FRH=146	V.17 14400 bps short
6.3.	EXAMPLES
Examples of calling (transmitting) and answering (receiving) one page using fax class 1 commands are shown in Tables 6-2 and 6-3, respectively. 

Table 6-2. Fax Class 1 Calling Sequence (One Page)
	DTE Commands	DCE Responses		(Host)	(Modem)	Remote Fax	Notes
	(1)	AT+FCLASS=1	(2)	OK			Set to Class 1
	PHASE A
	(3)	ATDT6163	(4)	Dials	(5)	Answers	+FRH=3 implied by Dialing			(6)	CONNECT	(7)	Send HDLC flags
	PHASE B
						(8)	Send NSF frame			(9)	<NSF>,OK	(10)	AT+FRH=3	(11)	CONNECT					(12)	Send CSI frame			(13)	<CSI>,OK	(14)	AT+FRH=3	(15)	CONNECT					(16)	Send DIS frame	Last frame bit = 1			(17)	<DIS>,OK	(18)	Drop carrier	(19)	AT+FTH=3	(20)	Send HDLC flags	(21)	Receive flags			(21)	CONNECT	(22)	<TSI>	(23)	Send TSI frame	(24)	Receive TSI	Last frame bit = 0			(25)	CONNECT	(26)	<DCS>	(27)	Send DCS frame	(28)	Receive DCS	Last frame bit = 1			(29)	Detect last frame bit			(39)	OK, drop carrier	(31)	AT+FTS=8	(32)	OK, wait 80 ms	(33)	AT+FTM=96	(34)	Send V.29			(35)	CONNECT	(36)	<TCF>	(37)	Send TCF data	(38)	Receive & check			(39)	OK	(40)	AT+FRH=3	(41)	CONNECT			(42)	Send CFR frame		Last frame bit = 1	(43)	<CFR>,OK	(44)	Drop carrier			(45)	OK
	PHASE C
	(46)	AT+FTM=96	(47)	Send V.29			(48)	CONNECT	(49)	age data	(50)	Send page data	(51)	Receive data			(52)	OK	(53)	AT+FTH=3	(54)	Send HDLC flags	(55)	Receive flags			(56)	CONNECT
	PHASE D
	(57)	<EOP>	(58)	Send EOP frame	(59)	Receive EOP	Last frame bit = 1			(60)	OK, drop carrier	(61)	AT+FRH=3	(62)	CONNECT					(63)	Send MCF frame	Last frame bit = 1			(64)	<MCF>, OK	(65)	AT+FTH=3	(66)	Send HDLC flags	(67)	Receive flags			(68)	CONNECT	(69)	<DCN>	(70)	Send DCN frame	(71)	Receive DCN	Last frame bit = 1			(72)	OK, drop carrier
	PHASE E
	(73)	ATH0	(74)	OK, hang up	(75)	Hang up
Table 6-3. Fax Class 1 Answering Sequence (One Page)
	DTE Commands	DCE Responses			(Host)	(Modem)	Remote Fax	Notes
	(1)	AT+FCLASS=1	(2)	OK			Set to Class 1
	PHASE A
					(3)	FAX machine dials			(4)	RING	(5)	ATA	(6)	Modem answers			(7)	Send HDLC flags	(8)	Receive flags	+FTH=3 implied by							answering			(9)	CONNECT
	PHASE B
	(10)	<NSF>	(11)	Send NSF frame	(12)	Receive NSF	Last frame bit = 0			(13)	CONNECT	(14)	<CSI>	(15)	Send CSI frame	(16)	Receive CSI	Last frame bit = 0			(17)	CONNECT	(18)	<DIS>	(19)	Send DIS frame 	(20)	Receive DIS	Last frame bit = 1			(21)	OK, drop carrier	(22)	AT+FRH=3	(23)	CONNECT					(24)	Send TSI frame	Last frame bit = 0			(25)	<TSI>, OK	(26)	AT+FRH=3	(27)	CONNECT					(28)	Send DCS frame	Last frame bit = 1			(29)	<DCS>, OK	(30)	Drop Carrier	(31)	AT+FRM=96					(32)	Send V.29			(33)	CONNECT	(34)	Send TCF frame			(35)	<TCF>	(36)	Drop carrier			(37)	NO CARRIER	(38)	AT+FTH=3	(39)	CONNECT	(40)	<CFR>	(41)	Send CFR frame	(42)	Receive CFR	Last frame bit = 1			(43)	OK, drop carrier
	PHASE C
	(44)	AT+FRM=96					(45)	Send page data			(46)	<page data>	(47)	Drop carrier			(48)	NO CARRIER
	PHASE D
	(49)	AT+FRH=3	(50)	CONNECT					(51)	Send EOP frame	Last frame bit = 1			(52)	<EOP>, OK	(53)	AT+FTH=3	(54)	CONNECT	(55)	<MCF>	(56)	Send MCF frame	(57)	Receive MCF	Last frame bit = 1			(58)	OK, drop carrier	(59)	AT+FRH=3	(60)	CONNECT					(61)	Send DCN frame 	Last frame bit = 1			(62)	<DCN>, OK
	PHASE E
	(73)	ATH0	(74)	OK, hang up	(75)	Hang up	
     
7.	FAX CLASS 2 COMMANDS
The fax class 2 commands are summarized in Table 7-1.
7.1.	COMMAND SYNTAX AND GUIDELINES
7.1.1.	DTE Commands
The ISO 646 character set (CCITT T.50 International Alphabet 5, American Standard Code for Information Interchange) is used for the issuance of commands and responses. Only the low-order 7 bits of each character are used for commands or parameters; the high order bit is ignored. Upper case characters are equivalent to lower case characters.
For Phase C data transmission or reception, all 8 bits are needed.
DTE Command Lines
A command line is a string of characters sent from a DTE to the modem (DCE) while the modem is in a command state. A command line has a prefix, a body, and a terminator. Each command line (with the exception of the A/ command) must begin with the character sequence AT and must be terminated by a carriage return. Commands entered in upper case or lower case are accepted, but both the A and T must be of the same case, i.e., "AT" = ASCII 065, 084 or at = ASCII 097, 116. The body is a string of commands restricted to printable ASCII characters (032 - 126). Space characters (ASCII 032) and control characters other than CR (ASCII 013) and BS (ASCII 010) in the command string are ignored. The default terminator is the ASCII <CR> character. Characters that precede the AT prefix are ignored. The command line interpretation begins upon receipt of the carriage return character.
Facsimile Command Syntax
After the "AT" or "at" prefix, facsimile commands use extended syntax. Each command is preceded by the +F character and consists of single characters and a decimal parameter (if applicable) terminated by the semicolon : character (ASCII 059) or by the <CR> that terminated the command line. A missing decimal parameter is evaluated as 0. 
For example, the command to instruct the modem to automatically answer a data or fax call and also enable reception is:
AT+FAE=0; +FCR 1 <CR>
Basic data mode and fax service class mode select commands are:
AT+FCLASS=0 <CR>	for Data Mode
AT+FCLASS=1 <CR>	for Service Class 1 Fax
AT+FCLASS=2 <CR>	for Service Class 2 Fax
In Class 2, the DCE makes and terminates calls, manages the communication session and negotiates (T.30 protocol) and transports the image date to DTE. The T.4 protocol management of image data, etc., is done by DTE.
The response to 
AT+FCLASS= 0<CR>	in Data Mode
or
AT+FCLASS=2<CR>	in Service Class 2 Fax
is
OK
The service class may be set by the DTE from the choices available using the +FCLASS=<VALUE> command.
General Rules
1.	+Fnnn commands must be entered completely, otherwise an ERROR response is sent.
2.	All response messages are preceded and followed by <CR><LF>. Multiple response commands (e.g., +FDIS: +FCSI: and +FDCS:) will, therefore, appear to a have a blank line between them.
3.	Fax Class 2 commands can be separated by the : character. The ; character can be omitted if desired. Note that non-data commands cannot be separated by the ; which is allowed as a dial modifier. 

Table 7-1.  Fax Class 2 Commands
Command
Function

Service Class ID


+FCLASS=
Service Class

Class 2 Action Commands


D
Originate a Call

A
Answer a Call

+FDT
Data Transmission

+FET=N
Transmit Page Punctuation

+FDR
Begin or Continue Phase C Receive Data

+FK
Session Termination

Class 2 DCE Responses


+FCON
Facsimile Connection Response

+FDCS:
Report Current Session

+FDIS:
Report Remote Identification

+FCFR
Indicate Confirmation to Receive

+FTSI:
Report the Transmit Station ID

+FCSI:
Report the Called Station ID

+FPTS:
Page Transfer Status

+FET:
Post Page Message Response

+FHNG
Call Termination with Status

Class 2 Session Parameters


+FMFR?
Identify Manufacturer

+FMDL?
Identify Model

+FREV?
Identify Revision

+FDCC=
DCE Capabilities Parameters

+FDIS=
Current Sessions Parameters

+FDCS=
Current Session Results

+FLID=
Local ID String

+FCR
Capability to Receive

+FPTS=
Page Transfer Status

+FCR=
Capability to Receive

+FAE
Adaptive Answer

+FBUF?
Buffer Size (Read Only)

+FPHCTO
Phase C Time Out

+FAXERR
Fax Error Value

+FBOR
Phase C Data Bit Order




4.	All Class 2 commands are assumed to be the final command on a command line. Additional characters will be ignored.
5.	An ERROR message will be generated if any of the following conditions occur:
a.	A Class 1 command is received while in Class 2.
b.	A Class 2 command is received while in Class 1.
c.	A Class 1 or Class 2 action command is received while in data modem mode.
d.	A Class 2 read-only parameter is given the = form of a +F command (e.g., AT+FAXERR=5).
e.	A Class 2 action command is given the inappropriate = or =? form (e.g., AT+FDR=?).
7.1.2.	Serial Port Speed and Flow Control
During fax mode, the DTE-DCE port speed is 19200 bps.
The DCE provides a speed buffer of 1024 bytes and provides the DC1/DC3 (XON/XOFF) or RTS/CTS method of controlling the data into the buffer. This flow control is controlled by the &K3 or &K4 command.
This method of data flow control is available only for DTE to DCE direction of data. There is no provision for data flow control from DCE to DTE.
Data Stream Termination
The DCE exchanges streams of data with the DTE while executing data transfer commands. These data streams use the termination described in Section 3.2/ISO 2111.
The ASCII <DLE> character (016) is used as a special character to shield special characters. The <DLE><ETX> character pair (<106><003>) is used to mark the end of a stream. The following patterns are used:
any data...<DLE><ETX>	end of stream
any data...<DLE><DLE>	single <DLE> in data
any data...<DLE><any byte>	delete <DLE><any byte>
DTE to DCE Streams
The DCE filters the data stream from the DTE, and removes all character pairs beginning with <DLE>. The DCE recognizes <DLE><ETX> as the stream terminator. The DCE recognizes <DLE><DLE> and reinserts a single <DLE> in its place.
The DTE must filter stream data to the DCE, and insert extra <DLE> characters ahead of data.
DCE to DTE Streams
The DTE must filter the data stream from the DCE, and remove all character pairs beginning with <DLE>. The DTE must recognize <DLE><ETX> as the stream terminator. The DTE must recognize <DLE><DLE> and reinsert a single <DLE> in its place.
The DCE filters stream data to the DTE, and inserts extra <DLE> characters ahead of data.
7.1.3.	Auto Answer
The DCE can answer as a data DCE or as a fax DCE. It can answer the call adaptively, i.e., it can determine whether the call is 'data' or 'fax'. The +FAA parameter controls this feature.
AT+FAA=1	; Auto answer as a facsimile or a data modem depending on the call
CONNECT XXXX	; DCE status response if data call
+FCON	; DCE status response if fax call
7.1.4.	Identification of T.30 Options
Group 3 devices negotiate session parameters in DIS, DCS, and DTC frames. These parameters are defined in Table 7-2.
7.1.5.	Session Status Reporting
The DCE provides reports to the DTE on the status of a session. The DCE provides the following status reports:
1.	Connection and hang up status:
+FCON
+FHNG:<0-255>
2.	Requested DIS session parameters +FDIS: <string> reports remote facsimile capabilities.
Syntax: +FDIS: VR, BR, WD, LN, DF, EC, BF, ST
3.	+FDCS: <string> reports the negotiated parameters
4.	Phase C prompts:
XON, XOFF, DC2
5.	Phase C base status reports: depending upon copy quality and related end-of page status:
+FPTS: <1-5>
7.1.6.	Procedure Interrupt Negotiation
CCITT allows a station to request a procedure interruption at the end of a page. This request is passed between stations by the PIP, PIN, and PRI-Q messages.
7.2.	SERVICE CLASS 2 IDENTIFICATION AND SELECTION
Three commands report identification and selection information. Each of these three commands cause the DCE to send a message to the DTE. The messages are programmable using ConfigurACE.
7.2.1.	+FMFR?, Request Manufacturer Identification 
The +FMFR? command causes the DCE to send a message identifying the DCE product manufacturer. The default message is:
ROCKWELLOK
7.2.2.	+FMDL?, Identify Product Model 
The +FMDL? command causes the DCE to send a message identifying the DCE product model. The default message is similar to:
RC96XXXACOK
7.2.3.	+FREV?, Identify Product Revision 
The +FREV? command causes the DCE to send a message identifying the DCE product model revision number. The message format is the same as the ATI3 message, e.g:
VX.XXX-model numberOK
7.3.	SERVICE CLASS 2 ACTION COMMANDS
These commands transfer data, and punctuate sessions. They also release specific T.30 messages. All action commands must be the last command on a command line as indicated by the terminating <CR>.
All action commands initiate processes. The modem will not accept other commands from the DTE until the modem issues a final result code (e.g., OK, CONNECT). The modem will abort the process if it receives any character before the final result code is issued.
7.3.1.	ATD, Originate a Call
Syntax:	ATD....<CR>
The DCE can support a DTE command to originate a call using the ATD command (see Section 3.2).
If this command is unsuccessful, the DCE reports an appropriate failure or error type result code such as NO CARRIER, NO DIALTONE, or BUSY (see Section 3.3).
If this call is successful, the typical DCE response is:
ATDnn..nn	(go off-hook, dial, get CED)+FCON	(DCE detects flags)[+FCSI:<remote ID string>]+FDCS:<T.30 subparameter string>OK
The DCE dials, detects call progress, and generates the CNG tone. It then waits for a DIS frame. On detection of the first Phase B preamble (V.21 ch. 2 modulated by 300 bps HDLC flags), it reports the +FCON message to the DTE. The DCE then switches to 19200 bps.
The DCE generates a DCS frame based on the received DIS frame and on the previously set +FDIS parameter. A +FDT command from the DTE releases the DCE to transmit that DCS frame.
The DCE reports the initial received T.30 negotiation messages, including the DIS frame and the optional CSI ID string. The +FDIS: report is followed by the OK final result code.
7.3.2.	ATA, Answer a Call
The DCE can support a DTE command to answer an incoming call using the ATA command (see Section 3.2). 
The DTE may issue an Answer command in response to an incoming ring.
If the Answer command is unsuccessful, the DCE will report an appropriate failure or error type result code, such as NO CARRIER (see Section 3.3).
Manual Call Answer
If this call is successful, the typical DCE response (answer and receive) is:
+FCON[+FTSI:<remote ID string>]+FDCS:<T.30 subparameter string>OK(DTE should issue +FDR command here)
Upon receipt of an Answer command from the DTE, the DCE answers and generates the CED tone. The DCE then generates a DIS frame (derived from the +FDIS parameter) and hunts for the first T.30 negotiation frames. Upon detection of the first Phase B preamble (V.21 ch 2 modulated by 300 bps HDLC flags), it reports the +FCON message to the DTE.
The DTE should report the initial received T.30 negotiation messages, including the DCS frame. The +FDCS: report will be followed by the OK final result code.
Automatic Answer
The modem provides for automatic answering of incoming calls. If configured for automatic answer, the modem answers an incoming call in compliance with T.30, and reports the same messages as described for manual answer.
Connection as a Data Modem
If configured to do so by the +FAA parameter, the DCE will adaptively answer as a facsimile DCE or as a data DCE. If the DCE answers as a data DCE, it resets the +FCLASS parameter to 0 and issues the appropriate final result code (e.g., CONNECT, or NO CARRIER) to the DTE.
7.3.3.	+FDT, Data Transmission
Syntax: 	+FDT <CR>
The +FDT command prefixes Phase C data transmission. When the DCE is ready to accept Phase C data, it issues the negotiation responses and the CONNECT result code to the DTE.
In Phase B, the +FDT command releases the DCE to proceed with negotiation, and releases the DCS message to the remote station. In Phase C, the +FDT command resumes transmission after the end of a prior transmit data stream.
Initiate Page Transmission
Phase B DCE polled response:
[+FCSI:<remote ID string>]	- if new CSI received[+FDIS:<subparameters from remote station>]	- if new DIS received+FDCS:<T.30 subparameter string>CONNECT<XON>	- when ready for data
After placing a call, or after finishing a document exchange, the DTE may command the DCE to re-enter T.30 Phase B to attempt to negotiate a document transmission.
Continue a Page
CONNECT<XON>
The DTE may issue more than one +FDT command for a given page, so that different files may be concatenated together. These files must have the same format.
Phase C Data Framing
Phase C data must be presented to the DCE in stream mode. The DCE expects Phase C data to follow until it detects <DLE><ETX> termination characters. The DCE will filter the stream as described in Section 7.1.2. 
The DCE will acknowledge the end of the data by returning the OK result code to the DTE.
If there is data underrun before the next +FDT or +FET= command, the DCE will zero-fill the pad as per T.4 until the Phase C timeout (+FPHCTO) is reached, or until more data is received. The DCE appends an RTC pattern to the transmit data after an +FET= command is received from the DTE.
Phase C Data Format
The Phase C data will be of the format specified by the negotiated T.30 DCS frame. The +FDCS:<string> response is defined in Section 7.4.2. The subparameter values are described in Table 7-2.
The DCE will use the negotiated minimum Scan Time parameter from the DCS frame, and insert sufficient fill bits to pad each line to the minimum scan time. This is reported in the +FDCS:ST subparameter.
If the DCE finds more than one consecutive EOL in Phase C data (e.g., RTC), it will send only one EOL.
1.	Phase C data must conform to T.4 specifications.
2.	The DTE need not include a final RTC, since the DCE will append an RTC in response to an FET= command.
3.	Some facsimile machines may treat two EOLs as an RTC.
<CAN>, Escape from Transmission
The DCE may request the DTE to halt Phase C transmission, by sending a cancel <CAN> character (024) to the DTE. In this case, the DTE should terminate Phase C transmission, issue <CAN>, and wait for the OK response code from the DCE.
Table 7-2.  T.30 Session Subparameter Codes
Label
Function
Value
Description


VR
Vertical Resolution
0
Normal, 98 lpi




1
Fine, 196 lpi


BR
Bit Rate (See Note 1)

+FDCS (originate)
+FDIS (answer)



0
2400 bps/V.27 ter
V.27ter (2400 only)



1
4800 bps/V.27 ter
V.27ter 



2
7200 bps/V.29 
V.29, V.27ter



3
9600 bps /V.29 or V.17
V.29, V.27ter



4
12000 bps/V.33 or V.17
V.17, V.33, V.29, V.27ter



5
14400 bps/V.33 or V.17
V.17, V.33, V.29, V.27ter

WD
Page Width
0
1728 pixels in 215 mm




1
2048 pixels in 255 mm




2
2432 pixels in 303 mm




3*
1216 pixels in 151 mm




4*
864 pixels in 107 mm


LN
Page Length
0
A4, 297 mm




1
B4, 364 mm




2
unlimited length


DF
Data Compression Format
0
1-D modified Huffman




1*
2-D modified Read




2*
2-D uncompressed mode




3*
2-D modified modified Read


EC
Error Correction 
0
Disable ECM



(Annex A/T.30)
1*
Enable ECM, 64 bytes/frame




2*
Enable ECM, 256 bytes/frame


BF
Binary File Transfer
0
Disable BFT




1*
Enable BFT


ST
Scan Time/Line

VR = normal
VR = fine



0
0 ms
0 ms



1
5 ms
5 ms



2
10 ms
5 ms



3
10 ms
10 ms



4
20 ms
10 ms



5
20 ms
20 ms



6
40 ms
20 ms



7
40 ms
40 ms

Notes: 	1.	CCITT T.30 does not provide for the answering station to specify all speeds exactly using the DIS frame. Implementation of some BR codes (e.g., code 2) by an answering DCE is manufacturer specific.
* Not supported.






7.3.4.	+FET, Transmit Page Punctuation
Syntax:	+FET=<ppm>[,<pc>,<bc>,<fc>]
DCE response:
+FPTS:<ppr> 	- when receive from remote OK
This command is used to punctuate page and document transmission after one or more +FDT commands. This command generates T.30 Post Page Messages selected by the <ppm> code (Table 7-3).
The +FET=<ppm> command indicates that the current page is complete; no more data will be appended to it. The value indicates whether there are any additional pages are to be sent and, if so, whether there is a change in any of the document parameters.
The DTE can command the DCE to generate PRI-Q messages with the +FET=<ppm> command using ppm codes 4-6 (see Table 7-3).
This command must be sent within the time out specified by +FPHCTO after sending Phase C data, or else the DCE will end the page and document transmission. If the Phase C timeout is reached, the DCE sends an EOP post page message and terminates the session.
The remote facsimile station should respond to the post page message with a post page response. The DCE will report this using the +FPTS:<ppr> response (Table 7-4).
End a Page
The +FET= command causes the DCE to append an RTC (6 EOL) pattern as needed and enter Phase D by sending the selected T.30 Post Page message.
The +FET=1 (EOM) command signals the remote station that the next document will have a new DCS negotiated; this causes the session to re-enter Phase B.

Table 7-3.  T.30 Post Page Message Codes
ppm Code
Mnemonic
Description

0
[PPS-]MPS
Another page next, same document

1
[PPS-]EOM
Another document next

2
[PPS-]EOP
No more pages or documents

3
PPS-NULL
Another partial page next

4
[PPS-]PRI-MPS
Another page, procedure interrupt

5
[PPS-]PRI-EOM
Another doc., procedure interrupt

6
[PPS-]PRI-EOP
All done, procedure interrupt

=8+ppm

Post Page Message (ppm code)



Table 7-4.  T.30 Post Page Response Messages
ppr Code
Mnemonic
Description

1
MCF
Page good

2
RTN
Page bad; retrain requested

3
RTP
Page good; retrain requested

4
PIN
Page bad; interrupt requested

5
PIP
Page good; interrupt requested



7.3.5.	+FDR, Begin or Continue Phase C Receive Data 
Syntax:	+FDR <CR>
Default value:	3 seconds in some places
The +FDR command initiates transition to Phase C data reception. This can occur after answering, dialing, a document is received, or a page is received.
The DCE reports the negotiated T.30 parameters, with the remote ID information if available. When the DCE is ready to commence data transfer, it issues a CONNECT response code. If the DCE cannot resume data transfer because there is no more data, it responds OK. When the DTE is ready to accept data, it issues an <DC2> character (018) to the DCE.
If the DTE issues an <XOFF> character to the DCE for flow control, the DCE signals the DTE when its buffers are empty by sending a <DLE><DC2> (<016><018>) character pair. 
When the DCE delivers the last byte of a page, the DCE reports the Page Transfer Status via the +FPTS:<ppr> response (Table 7-4).
After a Page Transfer Status Report, the DCE reports the post page message from the remote facsimile station via the +FET:<ppm> response (Table 7-3) which signals the intentions of the remote station. 
The DCE holds the post page response message to the remote facsimile station (MCF, etc.), represented in the +FPTS parameter until the next +FDR command. The DTE may modify the +FPTS parameter before issuing the +FDR command which releases that message. The DTE must issue a +FDR command to release Post Page Messages.
Initiate Document Reception 
The +FDR command may be issued in Phase B after an answer command, or in Phase B after a previous document.
The DCE response in stream mode is:
+FCFR 	 when CFR sent[+FTSI:<remote ID string>]	 if new TSI received+FDCS:<T.30 subparameter string>]	 if new DCS
CONNECT(<DC2> needed from DTE here)<Phase C data stream><DLE><ETX>+FPTS:<ppr>, <lc> [,<blc>, <cblc>]+FET:<ppm>OK(DTE must issue +FDR command to release post page response)
Continue Document Reception
The DTE may issue a +FDR command in Phase D, which releases the post page message, and indicates readiness to receive another page after receipt of a Multipage (+FET:0) or PPS-NULL (+FET:3) message. The DCE response will be:
CONNECT(<DC2> needed from DTE here)
<Phase C data stream)<DLE><ETX>+FPTS:<ppr>, <lc> [,<blc>, <cblc>]+FET:<ppm>OK(DTE must issue +FDR command to release post page response)
If done receiving:
+FHNG: <hangup cause code>OKContinue page reception
Phase C Data Framing
Phase C data may be presented to the DTE in stream mode. The DCE will transfer a stream of data to the DTE, followed by the <DLE><ETX> stream termination characters. The DCE will filter the stream as described in 7.1.2.
Phase C Data Format
The received data format is negotiated under T.30 reported by the +FDCS:VR,BR,WD,LN,DF,EC,BF,ST response.
The DCE will delete the terminating RTC (6 EOLs) patterns. 
<CAN>, Escape from Reception
From the +FDR command until the end of Phase D Date, the DCE is in a data transfer state, and will not respond to DTE command characters. The DCE will respond to three ASCII control characters: <DC1> (017) and <DC3> (019) flow control characters, and cancel <CAN> (024).
Upon receipt of the <CAN> character, the DCE will terminate the reporting of received data by sending trailing <DLE><ETX> characters to the DTE, and will then execute an implied +FK command in order to conduct an orderly disconnection.
7.3.6.	+FK, Session Termination
Syntax:	+FK
The +FK command causes the DCE to terminate the session in an orderly manner. In particular, the DCE will send a DCN message at the next opportunity and hang up. At the end of the termination process, the DCE will report the +FHNG response with result code (Table 7-5).
This operation can be invoked by using the cancel <CAN> character during Phase C data reception (see prior section)
The DCE will wait until the current page completes, unless the reception is of unlimited length; in that case, the DCE may halt reception and terminate the session at any time.
7.3.7	+FCIG, Set Polling ID
This command allows setting the Local Polling ID string used in a CIG frame. The syntax of this command is identical to +FLID.
Write syntax:	+FCIG="<local ID string>"
Valid value:	20-character ASCII string
Default value:	Empty
7.3.8+FLPL, Indicate a Document for Polling
This command allows setting up an answering modem to know that it has a document available for polling. This allows a calling modem to receive this fax from the answerer. The syntax is:
AT+FLPL=?0,1OKAT+FLPL=1OKAT+FLPL?1
7.3.9	+FSPL, Enable Polling
This command allows setting up an originating modem to be able to request to receive a document from a polled station. The syntax is:
AT+FSPL=?0,1OKAT+FSPL=1OKAT+FSPL?1
Table 7-5. Hang Up Status Codes
Code
Cause Description

0-9
Call Placement and Termination

0
Normal and proper end of connection

1
Ring Detect without successful handshake

2
Call aborted, from +FK or AN

3
No Loop Current

10-19
Transmit Phase A & Miscellaneous Errors

10
Unspecified Phase A error

11
No Answer (T.30 T1 timeout)

20-39
Transmit Phase B Hangup Codes

20
Unspecified Transmit Phase B error

21
Remote cannot receive or send

22
COMREC error in transmit Phase B

23
COMREC invalid command received

24
RSPEC error

25
DCS sent three times without response

26
DIS/DTC received 3 times; DCS not recognized

27
Failure to train at 2400 bps or +FMINSP value

28
RSPREC invalid response received

40-49
Transmit Phase C Hangup Codes

40
Unspecified Transmit Phase C error

43
DTE to DCE data underflow

50-69
Transmit Phase D Hangup Codes

50
Unspecified Transmit Phase D error

51
RSPREC error

52
No response to MPS repeated 3 times

53
Invalid response to MPS

54
No response to EOP repeated 3 times

55
Invalid response to EOP

56
No response to EOM repeated 3 times

57
Invalid response to EOM

58
Unable to continue after PIN or PIP

70-89
Receive Phase B Hangup Codes

70
Unspecified Receive Phase B error

71
RSPREC error

72
COMREC error

73
T.30 T2 timeout, expected page not received

74
T.30 T1 timeout after EOM received

90-99
Receive Phase C Hangup Codes

90
Unspecified Receive Phase C error

91
Missing EOL after 5 seconds

92
Unused code

93
DCE to DTE buffer overflow

94
Bad CRC or frame (ECM or BFT modes)

100-119
Receive Phase D Hangup Codes

100
Unspecified Receive Phase D errors

101
RSPREC invalid response received

102
COMREC invalid response received

103
Unable to continue after PIN or PIP

120-255
Reserved Codes

Note: Some codes are not implemented.




7.4.	SERVICE CLASS 2 DCE RESPONSES
The DCE sends information responses to the DTE as a facsimile session proceeds. They indicate the state of the facsimile session and convey needed information. These messages are solicited messages generated in execution of DTE action commands described in Section 7.3.
The DCE precedes and follows the information responses with <CR><LF>.
The DCE provides the on-line status of several session parameters when they are available during T.30 handshaking. These include the remote ID string and the DIS/DCS parameters. These responses report the T.30 session parameter frames. The subparameters are described in Table 7-2.
7.4.1.	+FCON, Facsimile Connection Response 
+FCON indicates connection with a fax machine. It is released by detection of HDLC flags in the first received frame. +FCON is generated in response to an Originate or Answer command.
7.4.2.	+FDCS:, Report Current Session Capabilities
Syntax:	+FDCS:VR,BR,WD,LN,DF,EC,BF,ST
+FDCS:<string> reports the negotiated parameters. Phase C data will be formatted as described by the subparameters. This message may be generated in execution of +FDT or +FDR commands before the CONNECT result code if new DCS frames are generated or received. (See Table 7-2.)
7.4.3.	+FDIS:, Report Remote Station Capabilities 
Syntax:	+FDIS:VR,BR,WD,LN,DF,EC,BF,ST 
+FDIS:<string> reports remote facsimile station capabilities and intentions. The parameters are provided in ASCII notation. (See Table 7-2.)
This message is generated in execution of Originate, Answer, +FDT, or +FDR commands.
7.4.4.	+FCFR, Indicate Confirmation to Receive 
Syntax:	+FCFR
The DCE sends a +FCFR response to the DTE upon reception of an acceptable TCF training burst and a valid DCS signal from the remote machine. This indicates that the DCE will receive Phase C data after the remote station receives the local DCE's CFR message. The +FCFR message is generated in execution of a +FDR command.
7.4.5.	+FTSI:, Report the Transmit Station ID
Syntax:	+FTSI: <TSI ID string> Transmit Station ID
This response reports the received transmit station ID string, if any. This message is generated in execution of Originate, Answer, +FDT, or +FDR commands.
7.4.6.	+FCSI:, Report the Called Station ID
Syntax:	+FCSI: <CSI ID string> Called Station ID
This response reports the received called station ID string, if any. This message is generated in execution of Originate, Answer, +FDT, or +FDR commands.
7.4.7.	+FPTS:, Receive Page Transfer Status
Syntax:	+FPTS:<ppr>, <lc> [,<blc>, <cblc>]
The +FPTS:<ppr> is generated by the DCE at the end of Phase C data reception in execution of a +FDR command.
The <ppr> is generated by the DCE; it depends on the DCE capabilities at T.4 error checking. See Table 7-4 for <ppr> values.
The receiving DCE will count the lines. These values are;
<lc> = line count
<blc = bad line count
<cblc> = <consecutive bad line count
A receiving DTE may inspect <ppr> and write a modified value into the +FPTS parameter. The DCE will hold the corresponding Post Page Response message until released by a +FDR command from the DTE.
7.4.8.	+FET:, Post Page Message Response
Syntax:	+FET:<ppm>
The +FET:<post page message> response is generated by a receiving DCE after the end of Phase C reception on receipt of the post-page message from the transmitting station. The +FET:<ppm> response is generated in execution of a +FDR command. The <ppm> codes respond to the T.30 post page messages (Table 7-3).
7.4.9.	+FPTS:, Transmit Page Transfer Status
Syntax:	+FPTS:<ppr>
The +FPTS: response reports a <ppr> number representing the copy quality and related post-page message responses received from the remote DCE. The valid <ppr> values are defined in Table 7-4.
The +FPTS:<ppr> response is generated in execution of a +FET=<ppm> command.
7.4.10.	+FHNG:, Call Termination with Status
Syntax:	+FHNG:<hangup status code>
+FHNG indicates that the call has been terminated. The hangup cause is reported and stored in the +FAXERR parameter for later inspection. The <hangup status code> values are described in Table 7-5.
+FHNG:<hsc> is a possible intermediate result code to any DTE action command described in Section 7.3. It is always followed by the OK final result code.
Upon termination of a call, the DCE determines the cause of termination and reports it as part of the FHNG:<hsc> response. It also stores this <hsc> code in the +FAXERR parameter for later inspection.
The hangup values are organized according to the phases of the facsimile transaction as defined by T.30. In the Figure A/T.30 flow charts, there are decision boxes labelled Command Received?"; this is referred to as COMREC in the table. Similarly, decision boxes labelled `Response Received?' are referred to as RSPREC in the table. A COMREC error or RSPREC error indicates that one of two events occurred: 1) a DCN (disconnect) signal was received, or 2) an FCS error was detected and the incoming signal was still present after 3 seconds. (See Figure A/T.30).
The table values are in decimal notation. Leading zero characters are optional.
7.4.11.	+FCIG:, Report the Polled Station ID
Syntax:	+FCIG: <        ID string> Polled Station ID
This response reports the received transmit station ID string, if any. This message is generated in execution of Originate, Answer, +FDT, or +FDR commands.
7.4.12.	+FDTC:, Report the Polled Station Capabilities
Syntax:	+FDTC: <     string> Polled Station Capabilities
If the answerer has a document to poll, it would be communicated to the originator in bit 9 of the DIS frame. The originating station may elect to transmit a fax, and later, send SIG and DTC frames to pick up the polled document. The answering station would report the the incoming DTC frame via the +FDTC: response message after command mode is cancelled with the AT+FDR command.
7.4.13.	+FPOLL, Indicate Polling Request
Syntax:	+FPOLL: 
This message is sent to the DTE if the received DIS message indicates that the remote station has a document to poll (by bit 9 in the DIS) and polling has been enabled with the AT+FSPL command. The DTE may then decide to receive rather than transmit. 
7.5.	SERVICE CLASS 2 PARAMETERS
All Service Class 2 parameters can be read, written, and tested for range of legal values by the DCE. The general syntax is described in Section 7.1.
Group 3 FAX devices negotiate session parameters in DIS, DCS, and DTC frames. The following parameters are provided to condition the facsimile DCE for the capabilities it will offer and to report the session settings negotiated.
The three primary T.30 session parameters are +FDCC, +FDIS and +FDCS. They are compound parameters, using values listed in Table 7-2. Figure 7-1 illustrates their relationships.


Figure 7-1.  T.30 Session Parameter Relationships

7.5.1.	+FDCC, DCE Capabilities Parameters 
Write syntax:	+FDCC=VR,BR,WD,LN,DF,ED,BF,ST
Valid values:	See Table 7-2
Default values:	0,3,0,2,0,0,0,0 (9600 bps version)
	0,5,0,2,0,0,0,0 (14400 bps version)
+FDCC allows the DTE to sense and constrain the capabilities of the facsimile DCE from the choices defined in CCITT T.30 Table 2. When +FDCC is modified by the DTE, the DCE copies +FDCC into +FDIS.
7.5.2.	+FDIS, Current Sessions Capabilities Parameters
Write syntax:	+FDIS=VR,BR,WD,LN,DF,EC,BF,ST
Valid values:	See Table 7-2
Default values:	0,3,0,2,0,0,0,0 (9600 bps version)
	0,5,0,2,0,0,0,0 (14400 bps version)
The +FDIS parameter allows the DTE to sense and constrain the capabilities used for the current session. The DCE uses +FDIS to generate DIS or DTC messages directly, and uses +FDIS and received DIS messages to generate DCS messages.
The DCE initializes the +FDIS parameter from the +FDCC parameter on initialization, when +FDCC is written, and at the end of a session.
7.5.3.	+FDCS, Current Session Results Parameters
Read syntax:	+FDCS?
DCE response:	+FDCS=VR,BR,WD,LN,DF,EC,BF,ST
	or 	+FDCS=
Valid values:	See Table 7-2.
Default values:	0,0,0,0,0,0,0,0
The +FDCS parameter is loaded with the negotiated T.30 parameters for the current session. A transmitting DCE generates DCS; a receiving DCE gets DCS from the remote station. The DTE may read this parameter.
The +FDCS parameter is initialized 0,0,0,0,0,0,0,0 upon initialization and at the beginning of a session. If the DTE issues a +FDCS? command in the initial state, the DCE reports:
<CR><LF>0,0,0,0,0,0,0,0<CR><LF>
The contents of +FDCS are spontaneously reported during execution of +FDR or +FDT commands by the +FDCS:VR,BR,WD,LN,BF,EC,BF,ST response using the same compound parameter format. 
Several commands and responses reference T.30 session negotiated parameters. These are described by a set of common subparameters. These subparameters are described in Table 7-2 with notes. Optional parameter values are marked with an *. Unspecified parameter values are reserved for future use.
The +FDCC, +FDIS, and +FDCS compound parameters use these session parameters (On writes, unspecified subparameters are unchanged.)
The +FDIS:, +FDCS:, and +FDTC: session report responses use these subparameters.
For test response, ranges of values are reported for each subparameter enclosed in parentheses characters. For example, a DCE response to +FDCC=? could report:
<CRLF> (0,1), (0-3), (0-3), (0-2), (0-2), (0-2), (0), (0-7) <CRLF> (9600 bps version)
or
<CRLF> (0,1), (0-5), (0-3), (0-2), (0-2), (0-2), (0), (0-7) <CRLF> (14400 bps version)

Example:
+FDIS=0,3,0,2,0,0,0,1 =
VR = 0	98 dpi vertical resolution, BR = 3	9600 bit/s (9600 bps version), BR = 5	14400 bit/s (14400 bps version), WD = 0	1728 pixels, LN = 2	unlimited lengthDF = 0	1-D modified Huffman coding, EC = 0	no ECM, BF = 0	no BFT,ST = 1	5 ms scan time.

7.5.4.	+FLID=, Local ID String
Write syntax:	+FLID="<local ID string>"
Valid value:	20-character ASCII string
Default value:	Empty
If FLID is not a null string, it generates a TSI or CSI frame. Table 3/T.30 includes digits 0-9, + and space.
If the DCE supports use of Table 3/T.30 only, the response to a +FLID=? command is (20) (32, 43, 48-57). If the DCE supports printable ASCII <, the response is: (20) (32-127)<CRLF>. The first (20) represents string length: the second (character values) field reports supported string values.
1.	The string is saved in RAM. 
2.	Non-numeric characters are not filtered out.
3.	The string is right justified.
7.5.5.	+FCR, Capability to Receive 
Write syntax:	+FCR=<value>
Valid values:	0 or 1
Default value:	0
+FCR=0 indicates that the DCE will not receive message data. This can be used when the DTE has insufficient storage. The DCE can send and can be polled for a file.
+FCR is sampled in CCITT T.30 Phase A and Phase D.
7.5.6.	+FPTS=, Page Transfer Status 
Write Syntax:	+FPTS=<ppr>
Valid values:	1, 2, 3, 4, 5
Default value:	0
The +FPTS parameter contains a value representing the post page response, including copy quality and related end-of-page status. These values correspond to post page response messages defined in T.30. The receiving DCE sets this parameter after it receives a page of Phase C data. The transmitting DCE sets this parameter with the status reported by the receiving station. The DTE may inspect or modify this parameter.
The set of <ppr> values is defined in Table 7-4. These values are also reported in the +FPTS response to the +FDR command.
7.5.7.	+FCQ, Copy Quality Checking
Write syntax:	+FCQ=<value>
Valid values:	0
Default value:	0
This parameter controls Copy Quality checking by a receiving facsimile DCE.
The DCE returns +FCQ=0 which indicates the DCE does no quality checking. The DCE will generate Copy Quality OK (MCF) responses to complete pages, and set +FPTS=1.
7.5.8.	+FPHCTO, DTE Phase C Response Time-out
Write syntax:	+FPHCTO=<value>
Valid values:	0 - 255, 100 millisecond units.
Default value:	30
The +FPHCTO command determines how long the DCE will wait for a command after reaching the end of data when transmitting in Phase C. When this time-out is reached, the DCE assumes there are no more pages and no documents to send. It then sends the T.30 EOP response to the remote device.
7.5.9.	+FAXERR, T.30 Session Error Report
Read syntax:	+FAXERR= <table value>, read only 
Valid values:	0 - 255, see Table 7-5 for meaning 
This read-only parameter indicates the cause of the hangup. Table 7-5 shows the valid values for this parameter as well as the meaning of the each value. +FAXERR is set by the DCE at the conclusion of a fax session. The DCE resets +FAXERR to 0 at the beginning of Phase A off-hook time.
7.5.10.	+FBOR, Data Bit Order 
Write syntax:	+FBOR=<value>
Valid values:	0, 1, 2, or 3
Default value:	0
This parameter controls the mapping between PSTN facsimile data and the DTE-DCE link. There are two choices:
Direct: The first bit transferred to each byte on the DTE-DCE link is the first bit transferred on the PSTN data carrier.
Reversed: The last bit transferred of each byte on the DTE-DCE link is the first bit transferred on the PSTN data carrier.
There are two data types to control:
This command controls Phase C data (T.4 encoded data) transferred during execution of +FDT or +FDR commands.
The following two codes are supported:
+FBOR=0 or 2	Selects direct bit order for Phase C data.
+FBOR=1 or 3	Selects reversed bit order for Phase C data.
Note that this parameter does not affect the bit order of control characters generated by the DCE.
7.5.11.	+FAA, Answer Parameter 
Write syntax:	+FAA=<value>
Valid values:	0 or 1
Default value:	0
+FAA=0	Constrains the DCE to answer as set by +FCLASS.
+FAA=1	Indicates that the DCE can answer and automatically determine whether to answer as a Class 2 facsimile DCE or as a data modem. If the DCE automatically switches, it modifies FCLASS appropriately.
Class 2 adaptive answer is implemented as follows:
First, a data mode handshake is attempted. If the DCE has been configured for Automode detection (using the ATN1 command), the DCE may try several protocols before terminating attempts to make a data mode connection. This can take as long as 6-8 seconds.
If the data mode connection attempt fails, a facsimile Class 2 connection is assumed. When a connection is made as a result of the adaptive answer, the DCE issues the DATA or FAX result code before the CONNECT or +FCON message to inform the DTE of the connection type. After making a Class 2 connection, the DCE stays on-line rather than going into the command mode as with a Class 1 connection.
7.5.12.	+FBUF?, Buffer Size
Read syntax:	+FBUF?
DCE response syntax:	<bs>, <xoft>, <xont>, <bc>
where:
<bs> = total buffer size
<xoft> = XOFF threshold
<xcont> = XON threshold
<bc> = current buffer byte count
Example:
+FBUF?
512, 506, 500, 0
The +FBUF parameter allows the DTE to determine the characteristics of the DCE's data buffer. Data buffers are used for flow control. Use of the reported values allow the DTE to transfer data without provoking XOFF.
7.6.	EXAMPLE SESSIONS
Tables 7-6 and 7-7 show the typical command and responses for sending and receiving two pages, respectively.

Table 7-6.  Send Two Pages, 1-D, No Errors

DTE Command
DCE Response
Local DTE Action
Remote Station Action

AT+CLASS=2
OK
Set Class 2
x

AT+FLID="<local ID>"
OK
Set local ID


AT<dial string>
+FCON[+FCSI:"<csi>"]+FDIS: <dis codes>OK
Off hook, dialSend CNGDetect flags[Get CSI]Get DIS
Answer,Send [CED]V.21 flags[CSI]DIS


AT+FDT<1st page data><DLE><ETX>
+FDCS:<DCS codes>CONNECT<XON>OK
[Send TSI]Send DCSSend TCFGet CFRSend carrierSend page data
[Get TSI]Get DCSGet TCFSend CFRReceive carrierReceive page data

AT+FET=0
+FPTS:1OK
Send RTCGet MPSGet MCF
Get RTCGet MPSSend MCF

AT+FDT<2nd page data><DLE><ETX>
CONNECT<XON>OK
Send carrierSend page data
Receive carrierReceive page data

AT+FET=2
+FPTS:1+FHNG:0OK
Send RTCSend EOPGet MCFSend DCNHang up
Get RTCGet EOPSend MCFGet DCNHang up



Table 7-7.  Receive Two Pages, 1-D Data, No Errors
DTE Command
 DCE Response
 Local DTE Action
Remote Station Action

AT+FCR=1
OK
Enable reception


AT+FLID="<local ID>"
OK
Set local ID



 RING
Detect ring
Dials[, Send CNG]

ATA
+FCON[+FTSI:"<tsi>"]+FDCS:<dcs codes>OK
Off hookSend CEDSend CSISend DISDetect flags[Get TSI]Get DCSBegin TCF receive
Get CEDGet CSIGet DISSend V.21 flags[Send TSI]Send DCSStart TCF

AT+FDR<DC2>
+FCFR[+FDCS:"<dcs codes>]CONNECT<page data stream><DLE><ETX>+FPTS:1, <lc>+FET:0OK
Accept TCFSend CFRGet page carrierGet page dataDetect RTCGet MPS
Finish TCFGet CFRSend pager carrierSend page dataSend  RTCDrop carrierSend MPS

AT+FDR<DC2>
CONNECT<page data stream><DLE><ETX>+FPTS:1, <lc>+FET:2OK
Send MCFGet page carrierGet page dataDetect RTCGet EOP
Get MCFSend page carrierSend page dataSend RTCDrop carrierSend EOP

AT+FDR
+FHNG:0OK
Send MCFGet DCN
Get MCFSend DCN



A.	AT COMMAND SET SUMMARY
A.1.	BASIC AT COMMANDS

	Command	Function
A/	Re-execute command.
A	Go off-hook and attempt to answer a call.
B0	Select V.22 connection at 1200 bps.
B1	Select Bell 212A connection at 1200 bps.
C1	Return OK message.
Dn	Dial modifier.
E0	Turn off command echo.
E1	Turn on command echo.
F0	Select auto-detect mode (equivalent to N1).
F1	Select V.21 or Bell 103.
F2	Reserved.
F3	Select V.23 line modulation.
F4	Select V.22 or Bell 212A 1200 bps line speed.
F5	Select V.22 bis line modulation.
F6	Select V.32 bis or V.32 4800 line modulation.
F7	Select V.32 bis 7200 line modulation.
F8	Select V.32 bis or V.32 9600 line modulation.
F9	Select V.32 bis 12000 line modulation.
F10	Select V.32 bis 14400 line modulation.
F13	Select V.FC 14400 line modulation.
F14	Select V.FC 16800 line modulation.
F15	Select V.FC 19200 line modulation.
F16	Select V.FC 221600 line modulation.
F17	Select V.FC 24400 line modulation.
F18	Select V.FC 26400 line modulation.
F19	Select V.FC 28800 line modulation.
H0	Initiate a hang-up sequence.
H1	If on-hook, go off-hook and enter command mode.
I0	Report product code.
I1	Report pre-computed checksum.
I2	Report OK.
I3	Report firmware revision, model, and interface type.
I4	Report response programmed by an OEM.
I5	Report the country code parameter.
I6	Report modem data pump model and code revision.
I7	Reports the DAA code (world-class models only).
L0	Set low speaker volume.
L1	Set low speaker volume.
L2	Set medium speaker volume.
L3	Set high speaker volume.
M0	Turn speaker off.
M1	Turn speaker on during handshaking and turn speaker off while receiving carrier.
M2	Turn speaker on during handshaking and while receiving carrier.
M3	Turn speaker off during dialing and receiving carrier and turn speaker on during answering.
N0	Turn off Automode detection.
N1	Turn on Automode detection.
O0	Go on-line.
O1	Go on-line and initiate a retrain sequence.
P	Force pulse dialing.
Q0	Allow result codes to DTE.
Q1	Inhibit result codes to DTE.
Sn	Select S-Register as default.
Sn?	Return the value of S-Register n.
=v	Set default S-Register to value v.
?	Return the value of default S-Register.
T	Force DTMF dialing.
V0	Report short form (terse) result codes.
V1	Report long form (verbose) result codes.
W0	Report DTE speed in EC mode.
W1	Report line speed, EC protocol and DTE speed.
W2	Report DCE speed in EC mode.
X0	Report basic call progress result codes, i.e., OK, CONNECT, RING, NO CARRIER (also, for busy, if enabled, and dial tone not detected), NO ANSWER and ERROR.
X1	Report basic call progress result codes and connections speeds (OK, CONNECT, RING, NO CARRIER (also, for busy, if enabled, and dial tone not detected), NO ANSWER, CONNECT XXXX, and ERROR.
X2	Report basic call progress result codes and connections speeds, i.e., OK, CONNECT, RING, NO CARRIER (also, for busy, if enabled, and dial tone not detected), NO ANSWER, CONNECT XXXX, and ERROR.
X3	Report basic call progress result codes and connection rate, i.e., OK, CONNECT, RING, NO CARRIER, NO ANSWER, CONNECT XXXX, BUSY, and ERROR.
X4	Report all call progress result codes and connection rate, i.e., OK, CONNECT, RING, NO CARRIER, NO ANSWER, CONNECT XXXX, BUSY, NO DIAL TONE and ERROR.
Y0	Disable long space disconnect before on-hook.
Y1	Enable long space disconnect before on-hook.
Z0	Restore stored profile 0 after warm reset.
Z1	Restore stored profile 1 after warm reset.
&C0	Force RLSD active regardless of the carrier state.
&C1	Allow RLSD to follow the carrier state.
&D0	Interpret DTR ON-to-OFF transition per &Qn.
&D1	Interpret DTR ON-to-OFF transition per &Qn.
&D2 	Interpret DTR ON-to-OFF transition per &Qn.
&D3	Interpret DTR ON-to-OFF transition per &Qn.
&F0	Restore factory configuration 0.
&F1	Restore factory configuration1.
&G0	Disable guard tone.
&G1	Disable guard tone.
&G2	Enable 1800 Hz guard tone.
&J0	Set S-Register response only for compatibility.
&J1	Set S-Register response only for compatibility.
&K0	Disable DTE/DCE flow control.
&K3	Enable RTS/CTS DTE/DCE flow control.
&K4	Enable XON/XOFF DTE/DCE flow control.
&K5	Enable transparent XON/XOFF flow control.
&K6	Enable both RTS/CTS and XON/XOFF flow control.
&L0	Select dial up line operation.
&L1	Select leased line operation.
&M0	Select direct asynchronous mode.
&M1	Select sync connect with async off-line command mode.*
&M2	Select sync connect with async off-line command mode and enable DTR dialing of directory zero.*
&M3	Select sync connect with async off-line command mode and enable DTR to act as Talk/Data switch.*
&P0	Set 10 pps pulse dial with 39%/61% make/break.
&P1	Set 10 pps pulse dial with 33%/67% make/break.
&P2	Set 20 pps pulse dial with 39%/61% make/break.
&P3	Set 20 pps pulse dial with 33%/67% make/break.
&Q0	Select direct asynchronous mode.
&Q1	Select sync connect with async off-line command mode.*
&Q2	Select sync connect with async off-line command mode and enable DTR dialing of directory zero.*
&Q3	Select sync connect with async off-line command mode and enable DTR to act as Talk/Data switch.*
&Q4	Select Hayes AutoSync mode.
&Q5	Modem negotiates an error corrected link.
&Q6	Select asynchronous operation in normal mode.
&R0	CTS tracks RTS (async) or acts per V.25 (sync).
&R1	CTS is always active.
&S0	DSR is always active.
&S1	DSR acts per V.25.
&T0	Terminate any test in progress.
&T1	Initiate local analog loopback.
&T2	Returns ERROR result code.
&T3	Initiate local digital loopback.
&T4	Allow remote digital loopback.
&T5	Disallow remote digital loopback request.
&T6	Request an RDL without self-test.
&T7	Request an RDL with self-test.
&T8	Initiate local analog loop with self-test.
&V	Display current configurations.
&W0	Store the active profile in NVRAM profile 0.
&W1	Store the active profile in NVRAM profile 1.
&X0	Select internal timing for the transmit clock.
&X1	Select external timing for the transmit clock.
&X2	Select slave receive timing for the transmit clock.
&Y0	Recall stored profile 0 upon power up.
&Y1	Recall stored profile 1 upon power up.
&Zn=x	Store dial string x (to 45) to location n (0 to 3).
%E0	Disable line quality monitor and auto retrain.
%E1	Enable line quality monitor and auto retrain.
%E2	Enable line quality monitor and fallback/fall forward.
%E3	Enable line quality monitor and auto-retrain with fast hang-up.
%L	Return received line signal level.
%Q	Report the line signal quality.
%T	PTT certification test signals.
\G0	Disable modem to modem flow control.
\G1	Enable modem to modem flow control.
\Kn	Controls break handling during three states.
\N0	Select normal speed buffered mode.
\N1	Select direct mode.
\N2	Select reliable link mode.
\N3	Select auto reliable mode.
\N4	Force LAPM mode.
\N5	Force MNP mode.
*F0	Download to flash memory at last sensed speed
*F1	Download to flash memory at 38.4 kbps
*F2	Download to flash memory at 57.6 kbps
A.2.	ECC COMMANDS
%C0	Disable data compression.
%C1	Enable MNP 5 data compression.
%C2	Enable V.42 bis data compression.
%C3	Enable both V.42 bis and MNP 5 compression.

\A0	Set maximum block size in MNP to 64.
\A1	Set maximum block size in MNP to 128.
\A2	Set maximum block size in MNP to 192.
\A3	Set maximum block size in MNP to 256.
\Bn	Send break of n x 100 ms.
\L0	Use stream mode for MNP.
\L1	Use block mode for MNP.
A.3.	MNP 10 COMMANDS
)M0	Disable MNP 10 link negotiation power adjustment.
)M1	Enable MNP 10 link negotiation power adjustment.

*H0	Select MNP 10 link negotiation at highest rate.
*H1	Select MNP 10 link negotiation at 1200 bps.
*H2	Select MNP 10 link negotiation at 4800 bps.

-K0	Disable MNP 10 extended services.
-K1	Enable MNP 10 extended services.
-K2	Enable MNP 10 extended services detection only.
-Q0	Disable MNP 10 fallback to 2400 bps (V.22 bis)/1200 bps (V.22).
-Q1	Enable MNP 10 fallback to 2400 bps (V.22 bis)/1200 bps (V.22).

@M0	Select initial transmit level of -26 dBm.
@M1	Select initial transmit level of -30 dBm.
@M2	Select initial transmit level of -10 dBm.
@M3 - @M10 	Select initial transmit level of -10 dBm.
@M11 	Select initial transmit level of -11 dBm.
@M12	-Select initial transmit level of -12 dBm.
.
.
.
@M30 	Select initial transmit level of -30 dBm.
@M31 	Select initial transmit level of -31 dBm.

:E0	Disable the compromise equalizer.
:E1	Enable the compromise equalizer.
A.4.	W-CLASS COMMANDS
%F1	Select 75Tx/1200 Rx when viewdata is selected.
%F2	Select 1200Tx/75Rx when viewdata is selected.

*B	Display list of permanently blacklisted numbers.
*D	Display list of delayed numbers.
*NCnn	Change country to one of eight in NVRAM.
*Z0	Use dial code 0 for pulse dial in Norway.
*Z1	Use dial code 1 for pulse dial in Norway.

\S	Display active configuration of the modem.
\W0	Disable V.23 split speed rate operation.
\W1	Enable V.23 split speed rate operation.
A.5.	CALLER ID COMMANDS
#CID=0	Disable Caller ID.
#CID=1	Enable Caller ID with formatted presentation.
#CID=2	Enable Caller ID with unformatted presentation.
A.6.	V.25 BIS COMMANDS
CIC	Connect incoming call.
CNL	Execute AT command (if permitted).
CRI 	Call request with number and identification
CRN	Call request with number.
CRS	Call request with memory address.
DIC 	Disregard incoming call.
PRI	Program identification
PRN	Program normal.
RLD	Request list of delayed call numbers.
RLI	List request of identification numbers
RLF	Request list of forbidden call numbers.
RLN	Request stored number list (dial strings).
A.7.	FAX CLASS 1
+FCLASS=n	Service class.
+FAE=n	Data/fax auto answer
+FRH=n	Receive data with HDLC framing.
+FRM=n	Receive data.
+FRS=n	Receive silence.
+FTH=n	Transmit data with HDLC framing.
+FTM=n	Transmit data.
+FTS=n	Stop transmission and wait.
A.8.	FAX CLASS 2
+FCLASS=n	Service class.
+FAA=n	Adaptive answer.
+FAXERR	Fax error value.
+FBOR	Phase C data bit order.
+FBUF?	Buffer size (read only).
+FCFR	Indicate confirmation to receive.
+FCLASS=	Service class.
+FCON	Facsimile connection response.
+FCR	Capability to receive.
+FCR=	Capability to receive.
+FCSI:	Report the called station ID.
+FDCC=	DCE capabilities parameters.
+FDCS:	Report current session.
+FDCS=	Current session results.
+FDIS:	Report remote identification.
+FDIS=	Current sessions parameters.
+FDR	Begin or continue phase C receive data.
+FDT=	Data transmission.
+FET:	Post page message response.
+FET=N	Transmit page punctuation.
+FHNG	Call termination with status.
+FK	Session termination.
+FLID=	Local ID string.
+FMDL?	Identify model.
+FMFR?	Identify manufacturer.
+FPHCTO	Phase C time out.
+FPTS:	Page transfer status.
+FPTS=	Page transfer status.
+FREV?	Identify revision.
+FTSI:	Report the transmit station ID.
A.9.	VOICE COMMANDS
#BDR	Select baud rate (turn off autobaud).
#CLS	Select data, fax, or voice.
#MDL?	Identify model.
#MFR?	Identify manufacturer.
#REV?	Identify revision level.
#VBQ?	Query buffer size.
#VBS	Bits per sample.
#VBT	Beep tone timer.
#VCI?	Identify compression method.
#VLS	Voice line select.
#VRA	Ringback goes away timer (originate).
#VRN	Ringback never came timer (originate).
#VRX	Voice receive mode.
#VSD	Enable silence deletion.
#VSK	Buffer skid setting.
#VSP	Silence detection period (voice receive).
#VSR	Sampling rate selection.
#VSS	Silence deletion tuner (voice receive).
#VTD	DTMF/tone reporting.
#VTS	Generate tone signals.
#VTX	Voice transmit mode.

*  Serial interface operation only.
B. COMMON CONFIGURATION SETUP STRINGS
This appendix describes setup strings to establish commonly used configurations.
1.	Force V.42 bis data compression with LAP-M error correction.
AT\N4%C2-K0
2.	Force V.42 bis data compression with MNP error correction.
AT\N5%C2
3.	Force MNP 5 data compression with MNP error correction.
AT\N5%C1
Note: With the setup strings in examples 1-3, if the remote is unable to negotiate the desire rate mode, the modem will disconnect and respond with NO CARRIER.
4.	Auto negotiate data compression and error correction.
AT&F (factory defaults) or
AT\N3%C3.
In this mode, the modem prefers MNO 10 over LAP-M, LAP-M over MNP 4, and V.42 bis over MNP 5. If error correction is not negotiated, the modem will connect in normal mode.


This page is intentionally blank.



DIGITAL COMMUNICATIONS DIVISIONREGIONAL SALES OFFICES
HeadquartersDigital Communications DivisionRockwell International4311 Jamboree RoadNewport Beach, CA 92660-3095
(Mailing Address)P.O. Box CNewport Beach, CA 92658-8902Tel: (714) 833-4600Fax: (714) 833-4078Fax: (714) 833-4391


USA - SouthwestDigital Communications DivisionRockwell International5000 Birch StreetSuite 400Newport Beach, CA 92660-3095Tel: (714) 833-4655Fax: (714) 833-6898
USA - Southeast
Digital Communications DivisionRockwell InternationalOne Copley ParkwaySuite 210Morrisville, NC 27560Tel: (919) 467-7703Fax: (919) 467-6096
USA - North Central
Digital Communications DivisionRockwell International3158 South River RoadSuite 204Des Plaines, IL 60018Tel: (708) 297-8875Fax: (708) 297-3230

USA - South Central
Digital Communications DivisionRockwell International2001 N. Collins Blvd.Suite 103Richardson, TX 75080Tel: (214) 994-4020Fax: (214) 994-4028
USA - Mid Atlantic
Digital Communications DivisionRockwell International5001-B GreentreeExecutive CampusRoute 73Marlton, NJ 08053Tel: (609) 596-0090Fax: (609) 596-5681



USA - Northeast and 
Canada EastDigital Communications DivisionRockwell International239 Littleton RoadSuite 1BWestford, MA 01886Tel: (508) 692-7660Fax: (508) 692-8185TLX (MCI) 6502512464



USA - Northwest and 
Canada WestDigital Communications DivisionRockwell International3600 Pruneridge AvenueSuite 100Santa Clara, CA 95051Tel: (408) 249-9696Fax: (408) 249-6518



JapanDigital Communications DivisionRockwell International Japan Co., Ltd.Sogo Hanzomon Bldg., 8F 7, Kojimachi 1-chome, Chiyoda-kuTokyoJapan 102Tel: (81-3) 3-265-8808Fax: (81-3) 3-263-0639TLX: J22198
AustraliaDigital Communications DivisionRockwell International3 Thomas Holt DriveP.O. Box 165North Ryde, NSW 2113AustraliaTel: (61-2) 805-5555Fax: (61-2) 805-5599TLX: AA30450

Hong KongDigital Communications DivisionRockwell International13th Floor, Suites 6dex 1392082 Paris La Defense 2
0Harbour Centre25 Harbour RoadWanchai
Hong Kong Tel: (852) 827-0181Fax: (852) 827-6488

KoreaDigital Communications DivisionRockwell InternationalRm. 608 Leema Bldg.146-1 Soosong-DongChongro-KuK.P.O. Box 527SeoulKorea(Dept. 553)Tel: (82-2) 736-9121Fax: (82-2) 736-9124

TaiwanDigital Communications DivisionRockwell InternationalRoom 2808International Trade Building333 Keelung Road, Section 1TaipeiTaiwan 10548, R.O.C.Tel: (886-2) 720-0282Fax: (886-2) 757-6760TLX: 26049 ENTTPE
GermanyDigital Communications DivisionRockwell International GmbHPaul-Gerhardt-Allee 50 a8000 Mnchen 60West GermanyTel: (49-89) 829-1320Fax: (49-89) 834-2734TLX: 521-2650 rimd d




United KingdomDigital Communications DivisionRockwell International Ltd.Central House3, Lampton RoadHounslow, Middlesex TW3 1HYEnglandTel: (44-81) 577-2800Fax: (44-81) 570-0758



FranceDigital Communications DivisionRockwell InternationalTour GAN, 16 Place de I'IrisCedex 1392082 Paris La Defense 2
FranceTel: (33-1) 49-06-39-80Fax: (33-1) 49-06-39-90




ItalyDigital Communications DivisionRockwell International CorporationVia Tortona, 3320144 MilanoItalyTel: (39-2) 47790-226Fax: (39-2) 4120-642
SO033193



AT Command Reference Manual

	pagex	1034

1034	pagexi

AT Command Reference Manual

AT Command Reference Manual

	1-page2	1034

1034	1-pagecxxxvi

AT Command Reference Manual

AT Command Reference Manual

	2-page2	1034

1034	2-page1

	3-page40	1034

1034	3-page39

AT Command Reference Manual

	4-page12	1034

1034	4-page13

AT Command Reference Manual

	5-page1	1034

1034	5-page1

AT Command Reference Manual

AT Command Reference Manual

	6-page1	1034

1034	6-page1

AT Command Reference Manual

	7-page1	1034

1034	7-page1

AT Command Reference Manual

AT Command Reference Manual

	A-page1	1034

1034	A-page1

AT Command Reference Manual

AT Command Reference Manual

	B-page1	1034

1034	B-page1













AT Command Reference Manual

	7-page1	883

883	7-page1



vz }@88 }h88 }h88 }88 }@88 }@88 }88 }@88 }h88 }h88x   }88u w x   }
88u  }@88IER, NO ANSWER, CONNECT XXXX, BUSY, and ER      :8  N8  i9  |9  @  @  )d  .d  	    .  3      n                  , . i k        ?
 A
 p( v( E- K- > > @ @ I I :I <I R #R U Z w  {              * , j l     Z \        U U V V 
Y Y Y Y                                                                              [Y 4[ ;[ 	\ \ \ \ |_ _ _ _ "a )a   M4 S4 d6 r6 6 6 U7 e7 7 8 8 8 Q9 d9 9 : : : : : ; ; ; ; >< D< = = = = !> B> > > e? l? A@ J@ A A A A B B /C OC PC TC UC VC WC eC fC jC kC mC nC C C C C C C C C C C C C D D "D #D $D %D 5D 6D :D ;D <D =D DD ED ID JD                                                         cJD LD MD ]D ^D bD cD eD fD D D D D D D D D D D D D D D D D D D D D D D D D 9E :E >E ?E @E AE QE RE VE WE XE YE E E E E E E E E E E E E E E E E E E E E F F F F IF JF NF OF PF QF aF bF fF gF hF iF F F F F F F F F F F F F F F G                                                                           _                    w  y            '  B  d  {          !  B  f  }            3  P  z            	  '	  F	  _	  x	  	  	  	  	  
  8
  X
  t
  
  
  
  
  '  E  \            @  o        þþþ  `'   `'   `'    `'   #        " `'   " `'   ! `'             `' %`'  `'K
  `'6   `'6   `'6G    
  E
  q
  
  
  
  8  U  t            0  T            ;  d            %  V            %  H  e            !  9  I  h              -  A  P  f  {                &  >  V  n                   6  P  j              
  %  =  U  m        `'    `'   `'   `' ]              4  T  p                >  g  ~          ^        @  ^          
    4  P          @  Y  v          5  O  j          )  W             8   d               !  I!  m!  !  !  !  !  "  S"  w"  "  "  "  #  2#  _#  #  #  #  
$  5$  X$  k$      `'   `'   `'    `'    `' [k$  $  $  $  $  $  
%  8%  e%  %  %  %  %  &  #&  B&  U&  {&  &  &  '  *'  H'  d'  '  '  '  '  
(  2(  K(  b(  (  (  (  (  (  )  ?)  d)  )  )  )  **  X*  *  *  *  *  *  +  5+  U+  j+  +  +  +  +  +  7,  X,  z,  ,  ,  ,  ,  -  N-  r-  -  -  .  >.  s.  .  .  /  :/  m/  /  /  0  ?0  e0  0  0  	1  .1  W1  1  1  1  2  22      `'   `'    `'    `' ]22  W2  y2  2  2  2  2  3  3  93  U3  k3  3  3  3  3  3  3  84  g4  4  4  .5  K5  5  6  Z7  7  :8  i9  9  :  :  ;  ;  ;  ;  ;  ;  
<  p<  <  <  >  >  @  @  B  B  C  C  D  D  D  D  E  F  F  OH  iH  ĿκκݵοΠݛοκݛο             `'     `'                     `'    `'     `'     `'   	 `' p@    `'    `'     `'    `'    `'  >                 `'    `'    `' ;iH  K  M  mO  Q  Q  R  S  V  &V  W  %W  >W  W  X  Y  Z  Z  6Z  VZ  Z  Z  Z  Z  \  ]  1_  E_  `  a  a  a  a  a  a  \b  kb  vb  b  b  d  f  h  i  i  i  i  Sj  j  k  k  tl  Am  um  m  7n  Xo  Yq  pr  r  u  gu  οĵΰ竫    `'    `'    `'    `'     `'            `'     `'    `'   / `'    `'    `'             `'             `'     `'     `'     `'     `'  =gu  u  u  v  1v  v  v  Tw  ow  w  w  w  w  w  ly  z  k{  {  t|  d}  (~  ~    ?      Z  '        K    ݇        =  A      -  ?  T    Ջ    (          ?  N  ^  p      %  @  S  d  s        $  ?          '  9  O        `'     `'            `'    `'     `'    `'   / `'    `'     `'    `'    `'    `'  K  p  %  4  D  V  x  {  S      ݖ         e        Ϙ  t    ʙ  ٙ          ʚ      כ      Y    '      v                  2  A  Q  c    N  ̣  f  Ԥ      	  '        }    t    E  T  d  v  Ŀ                        `'    `'     `'     `'     `'            `'    `'     `'    `'    `'   / `'    `'  Gv          ï  ů  ǯ  ɯ  ˯  ͯ  ϯ  ү  կ  د  ۯ  ޯ  վ[վDDDDD                                                    7 -     p@P    4       P W $"$"$"$"$"      	    	   	   	 	 	   	 	 	   	 	 	   	 	 	   	 	   7          p@P    7 m
     p@P    7 
     p@P    7 K     p@P           < <  \
P       ޯ                        
              $  '  +  /  2  ŭrŭ=ŭ   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   4       P W T$"    	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	   6 -   5 
     
lTp@P    6 K   4       P W T$"      	     	  	   	 	  	   	 	  	   	 	  	   	 	  	   	 	   2  5  7  :  G  J  N  R  U  X  Z  ]  d  g  k  o  r  u  w  z                                °  ɰ  ̰  ϰ  Ұ  հ  ذ  ڰ  ݰ                                 $  3  6  9  <  ?  B  D  ſſſſſſſſ5 
     
lTp@P    6 K   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -  BD  H  V  Y  \  _  b  e  g  k  y  |                                ñ  Ʊ  ɱ  ̱  ϱ  ѱ  ձ                                  ,  /  2  5  8  ;  =  A  P  S  V  Y  \  _  a  e  u  ܧܧܧܧܧܧܧܧ4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -   5 
     
lTp@P    6 K  Bu  x  {  ~                          ɲ  ̲  ϲ  Ҳ  ղ  ز  ڲ  ޲                  	                #  &  )  -  0  4  6  :  @  C  F  J  M  Q  S  W  d  g  j  n  q  t  v  z        ſſſſſſſſ5 
     
lTp@P    6 K   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -  B                      ³  ĳ  ȳ  ֳ  ٳ  ܳ                       
        !  $  (  +  .  0  4  B  E  H  L  O  R  T  X  f  i  l  p  s  v  x  |                            ſſſſſſſſ5 
     
lTp@P    6 K   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -  B    ´  ƴ  մ  ش  ۴  ߴ                     
        "  %  )  ,  /  1  5  D  G  J  N  Q  T  V  Z  i  l  o  s  v  y  {                              µ  ĵ  ȵ  ׵  ڵ  ݵ          ſſſſſſſſ5 
     
lTp@P    6 K   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -  B              
    0  <  G  `  b  d  f  h  ܧ|eN7777                          7          p@P    7 m
     p@P    7 
     p@P    7 K     p@P           < <  \
P        4       P W T$"  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	  	   	 	    6 -   5 
     
lTp@P    6 K  h  j  l  n  q  t  w  z  }                  ˴QK3-----      6 -   5 
     
lTp@P    6 K   4       P W T$"      	     	  	   	 	  	   	 	  	   	 	  	   	 	  	   	 	    7 -     p@P    7 
     p@P    7 K     p@P    4       P W $"$"$"$"$"      	    	   	   	 	 	   	 	 	   	 	 	   	 	 	   	 	                ¶  Ŷ  Ƕ  ˶                                 $  7  :  =  A  D  G  I  M  ]  `  c  g  j  m  o  s      ŭrŭrŭrŭrŭrŭ    4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -   5 
     
lTp@P    6 K   4       P W T$"    	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	  ,                              ַ  ٷ  ܷ                        	  ͹  Ϲ  ſſſrZT         6        5      
lTp@P    4       P W T$"  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	  	   	 	    5 
     
lTp@P    6 K   4       P W T$"  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   6 -  Ϲ  ѹ  ӹ  չ  ׹  ٹ  ۹        ϻ  ޻       %  ˼    %  4  D  V  k      9  e  t        s  ο  /  |          j    	      P    ⭨{{v{{v{q    `'    `'    `'    `'            `'    `'   / `'    `'    `'     `'    `'   4       P W $"$"$"$"$"$"$"                                                6        5          
lTp@P   ,  U  {                  :  p          ^  {            `  |        i  x                    D          q          :        A  P  `  r    .    L            m    :          	    N        `'     `'    `'    `'    `'             `'    `'    `'   / `'    `'     `'  M               -  <  L  ^  z  @  n  ;  O    }      h  D  }                l          5            n                  Q  p                  E      ;              ;  ^  쿿ĵɵ     `'    `'    `'     `'            `'    `'    `'     `'    `'    `'     `'    `'    `'   / `'  G^            |        D  Y      $  c      Q  `  t         8  ) 8 < V  & 1 @ R   y J 
 
 
 
 
 Ŀu                    7 K     p@P    7      p@P    7      p@P     `'    (`'    `'    `'     `'             `'     `'    `'     `'    `'    `'   / `'    `'  *
 
   
    , . 1 > ҩs[[2                                         (       P ? P
l!    	 	    	 	 	    	 	 	    	 	 	    	 	   5      
lTp@P    5 K     
lTp@P    5      
lTp@P        (       P ? P
l!     	    	  	    	  	    	  	    	    7      p@P    7      p@P   > M Y i k n ~                  ЧqЧqЧqHB                  (       P ? P
l!  	   	   	 	  	   	 	  	   	 	  	   	 	    5 K     
lTp@P    5      
lTp@P        (       P ? P
l!  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5      
lTp@P    5 K     
lTp@P    

 5
 7
 9
 ;
 =
 ?
 A
 W
 
 e  ~     ! 6 	 >   / ? l |     1 k   [    + d        ֧                   `'   / `'    `'     `'     `'    `'           .       P K P######                                         5          
lTp@P                   0 r   Q        s     A   D    " K" `" " @# r# # # ?$ N$ e$ w$ $ $ e% y% % % % % % % & ' ' ' ( 3( p( r) ) <* p* * * + + ++ @+ E, - m- |- - - - - . . +/ / ݿݿؿغݿ             `'            `'    `'    `'     `'    `'    `'    `'   / `'    `'    `'    `'  I/ / / / 0 0 0 0 ~1 1 1 1 1 K2 2 2 3 3 03 ]3 4 4 4 4 4 4 5 5 5 5 #5 25 A5 R5 d5 5 _6 {6 6 6 6 6 6 6 #7 7 8 P8 e8 8 9 9 9  : J: M: R: p: ; ; 
< ?< < < < < > ? @ @ ĿĿص    `'     `'     `'   	 `'   	 `'    `'             `'             `'    `'    `'     `'    `'    `'   / `'  E@ A A B B 2B B C C (C 8C JC `C C C C C C C C D 
D D D (D *D ±~m\H                      P  	$	\
x#`' 
  		P    
  		P    
 e 		P    
 { 		P    
  		P    
 j 		P    
  		P      `'    `'            `'     `'            `'   / `'    `'  *D /D ?D HD MD ]D fD kD {D D D D D D D D D D D D D D D D D D D ±xgVE±Vxg    
  		P    
 j 		P    
  		P    
 e 		P    
 { 		P    
  		P    
 j   
  		P           P  	$	\
x#`' 
    
    
 e   
 {   
    
 j   
   D D D  E E E E E E &E ,E 0E <E AE CE EE QE WE [E iE oE sE ~E E E E E E E E E E E E E E E E E E E E E E E E 	F ͹ޗu͹ޗu͹ޗu͹ޗu͹
  		P    
 e 		P    
  		P    
  		P           P  	$	\
x#`' 
  		P    
 j 		P    
 { 		P   .	F F F F F #F /F 4F 6F 9F FF KF OF XF [F `F rF wF yF |F F F F F F F F F F F F F F F F F F F F F ͼޫuͼduͼޫuͼޫu 
 j 		P    
  		P           P  	$	\
x#`' 
  		P    
 j 		P    
  		P    
 e 		P    
 { 		P    
  		P   'F G 	G 
G G G "G 1G 6G 8G ;G HG NG RG `G dG iG uG zG |G G G G G G G G G G G G G G G G G G G G G ͼuͼuͼuͼd 
 j 		P    
  		P           P  	$	\
x#`' 
  		P    
  		P    
 e 		P    
 { 		P    
  		P    
 j 		P   'G G 
H H H !H 'H ,H 9H >H @H DH QH WH [H hH mH rH H H H H H H H H H H H H H H H H H H H  I I I ͼxdͼxdͼxdͼx        P  	$	\
x#`' 
  		P    
 j 		P    
  		P    
 e 		P    
 { 		P    
  		P    
 j 		P    
  		P   'I I I I I I I I  I "I $I &I *I ,I .I 0I 2I 4I 6I 8I :I <I YI QJ |J K $K 4K FK `K wK yK ڱ~ytoje``[VQ     `'    `'            `'   / `'    `'    `'     `'    `'   
 j 		P    
  		P    
 e 		P    
 { 		P    
    
    
 e   
 {   
    
 j   
           P  	$	\
x#`'yK K K K L _M nM ~M M M M ;N UN N N YO O 	Q TQ R %R R S <S S S S S S BT HT ]T cT iT T U V <V BV lV rV xV V TW X uY |Y Y Y Z Z [ s[ |[ <\ K\ \ ] c] ] ^ ^ _ ` ئ             `'    `'    `'            `'    `'    `'    `'    `'    `'     `'    `'   / `'    `'    `'    `'     `'    `'  ?` '` g` ` Ta pa a b b b b pc c c 9d d d d we e e f f rg g Ch Vh i )i i i j j k k Yl ml .m Gm m n n n wo o p 
p qp {p p p q q Jr _r r s s s t t cu uu v /v v v w w Wx jx y "y y y z z 7{ J{ { | | | q} } ;~ N~       F      `'    `'     `'    `'  ]F a     d x $ 7 ݄    
 . / ? g     1      ƌ 񹢋t]                                     7      p@P    7      p@P    7 
     p@P    7      p@P           < <  \
P          `'     `'    `'     `'    `'                     `'     `'    `'  ƌ ͌ ، ڌ ތ     ңs[C+                                          5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'     	    	  	    	  	    	  	    	  	    	    7 =
     p@P    7      p@P    ' ) - ; B I K N 蹡qYA)                                      5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'    	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	   5 =
     
lTp@P   N P T f m t w { }         ˍ ҍ ٍ ۍ ߍ     ѹqYAѹqYAѹqYAѹ 5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	    
 
   , 3 6 9 [ ] a x   иqYA)qYA   5 =
     
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P            Î Ŏ Ɏ        ! ( 0 3 7 9 > СqYAСqYAСqYAС 5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P   > R Z c f j l q                   иYAиYAиYAи 5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P              G J M O R 蹡qYA蹡)qYA   5 
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P   R T Y c f i k n p v               ѹqYAѹqYAѹqYAѹ           5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	          ) , / 2 ; = C n q t w    иYAиYAиYA                     5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P            
      0 иYAи)YA   5 =
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P   0 7 D F I K Q c j r t w y      иqYAиqYAи                                         5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    ے ݒ   	      3 : A C F 蹡qYA)qYA)   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P   F H N k r x z }        ѹqYAѹqYA                                                        5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	     ʓ ѓ ؓ ړ  ѹqYA                                                                                           5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	        	    ! + . 1 3 6 8 > T W Z ] ` b h   ѹqYAѹqYAѹqYAѹ 5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	              ǔ    иqYAиq)A   5 
     
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P       & 0 : A H O Сv_H1   7      p@P    7      p@P    7      p@P    7 
     p@P    7      p@P           < <  \
P        .       P K   0pL'  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	    5 =
     
lTp@P    5      
lTp@P   	O Z \ b      麢rZB*                                        5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'     	    	  	    	  	    	  	    	  	    	    7 =
     p@P    Ǖ ɕ Ε      蹡qYA                                                                                      5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'    	 	    	 	 	    	 	 	    	 	 	    	 	 	    	 	   5 =
     
lTp@P     	        % ? B E H M O U o r u x { ѹqYAѹqYAѹqYA                     5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	  { }       ѹqYA                                                                                           5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	       Ė ǖ ɖ Ӗ Ֆ ۖ        - 3 8 : R T Y y  ѹqYAѹqYAѹqYAѹ 5 =
     
lTp@P    5      
lTp@P    5      
lTp@P    5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	        ė Ǘ ʗ ͗ З җ ؗ       иqYAиqYAи                                         5      
lTp@P    5 
     
lTp@P    5      
lTp@P    .       P K   0pL'  	  	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	 	   	 	 	   5 =
     
lTp@P    5      
lTp@P    5      
lTp@P      S              o    T h t  g     9 X r A ^ w  ~ytojetojjtojjt`jjtojjt               `'    `'    `'     `'    `'           F       P { 
  `'`'`'`'`'`'`'`'`'`'                                                                                &   .       P K   0pL'  	   	   	 	  	   	 	  	   	 	  	   	 	  	   	 	   #   ǟ )  A    R  0    2   Ȧ  ڧ   9 Z L m    ] y   ( G _ o  í    0 M f   ˮ ޮ  
 ) B Q c }       6 O b t      % D f       `'    `'     `'     `'    `'    `'     `'    `'    `'            `'     `'  M  Ǳ   ' 9 I [ ĳ ڳ  
    ´ ߴ   5 B b w    ׵    ն    I a    ÷ ߷   < Y k }   ϸ    , P c k  ǹ    - > M m    ֺ      . ? i     6 L     `'     `'     `'            `'     `'    `'    `'    `'  SL ] j x     ռ     * F o   ν . D P d   i u  L q }    U ] r        + B i      D V x       8    3 E q        ?       C    = `'    `'     `'             `'    `'     `'    `'    `'    `'  QC V s      + @ f        3 K f ~    e   ; O u  Z     ) O    * ^    " S      U  |      ! ? S n      9     @ \ }      `'    `'     `'            `'    `'    `'     `'    `'    `'    `'  O         ( = g      
 6 n |    1 P c       0 P     V u M   @ f  )    % 8 r      8 Y C e p    @ y     _      =      `'    `'    `'     `'    `'   . `'    `'     `'            `'    `'  O=    g   l      w    ! 4 X Y r     < u  y       a L r    Q     0 M  ! w         1    * j   Z    þ  `'             `'     `'    `'    `'    `'    `'     `'    `'                      `'    `'    `'    `'    `'     `'  A  O Y k  / Q [ w  I g     f    F    	 	 
 $
 V
 
 
  ( < q  J U ~    ,
 G
 
 
 
 
 
 z      " j   '       # 8    .                      `'    `'    `'    `'    `'    `'    `'     `'            `'     `'    `'  I     ? i    6 8 a c   " =         翨ztnW                                                    P  t"t"   	       	   :        :           P  t"     	    	    7 B     p@P    7 
     p@P     `'  < <  \
P          `'   ' `'   ( `'    `'     `'     `'    `'    `'  >         + - C E G O e g o                - / 1 I       " # # ййzupkfuafau       `'     `'             `'    `'     `'          P  t"  	  	 	   	 	 	          P  t"t"   	       	   :        :           P  t"  	   	   	 	    5 B     
lTp@P    5 
     
lTp@P   %# G& ( ) + - >0 1 4 84 5 b7 9 9 A< O= > ? DB TB vB B B B B C ;C gC C C D RD D D D D E 9E cE E F  F F F  G ]G G HH mH AI [I J J K K K 	M  M M M  N UO O 5P WP iP Q R R R R `T ӿӿӺӺ             ' 
`'   ' `'             `'    `'   ) `'     `'    `'            `'     `'     `'     `'     `'  G`T oT U U 8U wU U U 
V V Y Y Y Y 3[ =[ g[ [ [ \ \ \ \ {_ _ _ _ !a +a Va ]a ^a wa a a a ?c c c 	g #g {h h i Li li i i j j j j j j ӿӺӵӰӿӺ񗒗񍍍             , `'     `'    `'     `'    `'    `'           * `'   * `'   * `'
  * 	`'   * `'   * `'   * `'   * `'   +`'J         < <  \
P          `'     `'    `'  5j j gk vk k l Rm Tm vm m m m m m m m m pX@                                            5 B     
lTp@P    5 
     
lTp@P           P  t"t"   	       	   :        :           P  t"     	    	    7 B     p@P    7 
     p@P     `'  < <  \
P         `'    `'     `'    `'  m m m m m m m m m n n 
n n n 'n Bn Dn Jn rn tn yn n n n n n n n n n n n n o o $o Fo Ho Po po ro zo o o o o o o o o o ƮƮ       P  t"  	  	 	   	 	 	   5 B     
lTp@P    5 
     
lTp@P           P  t"t"   	       	   :        :           P  t"  	   	   	 	   2o p p "p $p &p .p Ep Gp Op _p ap ip |p ~p p p p p p p p p p p q 
q q 'q )q 1q Gq Iq Pq gq iq oq q q q q q q q q q q q q q Ů            P  t"  	  	 	   	 	 	   5 
     
lTp@P           P  t"t"   	       	   :        :           P  t"  	  	 	   	 	    5 B     
lTp@P   1q q r r r }r r s 6s s s <t gt t gu u v v w w w x x y `y ty dz z z { { 
| 6| ]| | | e} } } } } )~ _~ t~ ~ ~ ~     ـ P ]     9 þ͠͠͠͠ 3 `'    `'           2 `'     `'   1 `'    `'     `'     `'    `'   - `'            `'   5 `'     
lTp@P           P  t"  	   	   	 	   99 ڂ   ރ    w  P ц ۇ  B ] ŉ     m ƌ f x U q    h I e  =          ۖ   C   	  " )                                      7      p@P           < <  \
P         `'   3 `'   / `'    `'    `'   3 `'     `'             `'    `'   3 `'     `'  5) 3 : G I K O d g w y һzb\D                                                                                  5 	     
lTp@P    6    5      
lTp@P    (       P ? <`'     	    	  	    	  	                 5      
lTp@P    7 	     p@P    7      p@P    7      p@P   
y { }         Ś ՚ ך ٚ ۚ ޚ   ׿`7                (       P ? <`'  	    	   	 	   	   	 	   	   	         	       (       P ? <`'     	 	     	 	 	     	 	 	       	         	   5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'      	    	   	    	   	                    
   " , . 0 2 5 E T V X Z ] u         ě ƛ ɛ       ( * ׿׿׿׿׿`        (       P ? <`'     	 	     	 	 	     	 	 	       	         	   5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'       	     	   	     	   	                    $* , . 0 3 J L N P R U l n p r t x         ׿```                                                                    (       P ? <`'       	     	   	     	   	                     5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'  	    	   	 	   	   	 	   	   	         	         Ɯ ɜ ՜ ל ٜ ۜ ݜ        	  
  * ׿`7׿ (       P ? <`'       	     	   	     	   	                     (       P ? <`'  	    	   	 	   	   	 	   	   	         	       5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'     	 	     	 	 	     	 	 	       	         	  * - C E G I K O b d f h j n         ʡ``                                                                                   (       P ? <`'       	     	   	     	   	                     5      
lTp@P    (       P ? <`'  	    	   	 	   	   	 	   	   	         	       5      
lTp@P    5 	     
lTp@P    6      ȝ ˝ ؝ ڝ ܝ ޝ         7 9 ; ? U ׿`7׿ (       P ? <`'       	     	   	     	   	                     (       P ? <`'  	    	   	 	   	   	 	   	   	         	       5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'     	 	     	 	 	     	 	 	       	         	  U X e g i k m q }             Ğ ʡ`ʡ                                                                                   (       P ? <`'     	 	     	 	 	     	 	 	       	         	   5      
lTp@P    (       P ? <`'  	    	   	 	   	   	 	   	   	         	       5      
lTp@P    5 	     
lTp@P    6   Ğ ƞ Ȟ ʞ ͞ Ӟ ٞ ۞ ݞ ߞ           
      ! # & - 4 6 8 : = D K M O Q T [ b ׿׿׿׿׿׿׿                                                            5 	     
lTp@P    6    5      
lTp@P    5      
lTp@P    (       P ? <`'       	     	   	     	   	                    *b d 6 H J L N P R T }   ݠ   
   ¤ Q   ׹_ZUPZKFAFAF<FFZ       `'     `'     `'   3 `'   4 `'             `'   (       P ? `'`'`'`'`'                                  5          
lTp@P    5 '      
lTp@P   5 ' 8    "
lTp@P  8    (       P ? <`'      	     	  	     	  	                      * 7 9 < G i k n y  վrZB%rZB                 P ' 	(#    	 	    	 	 	    	 	   5 m
     
lTp@P    5 
     
lTp@P    5 N     
lTp@P           P ' 	(#     	    	  	    	    7 m
     p@P    7 
     p@P    7 N     p@P     `'  < <  \
P              ˦       " 1 T V Y h          ˳˳˳˳˳˳~ggS                       `'  < <  \
P        5 `'     
lTp@P           P ' 	(#  	   	   	 	  	   	 	    5 m
     
lTp@P    5 
     
lTp@P    5 N     
lTp@P           P ' 	(#  	  	 	   	 	 	 	   	 	 	             % B һnV9nV                                                              P ' 	(#    	 	    	 	 	    	 	   5 m
     
lTp@P    5 
     
lTp@P    5 N     
lTp@P           P ' 	(#     	    	  	    	    7 m
     p@P    7 
     p@P    7 N     p@P   B D G L j l o t        è  
 6 Щ - ګ ] ( h    ˳˳˳~gb]XXSNSSSNIbb        `'     `'     `'   4 `'             `'   5 `'     
lTp@P           P ' 	(#  	   	   	 	  	   	 	    5 m
     
lTp@P    5 
     
lTp@P    5 N     
lTp@P           P ' 	(#  	  	 	   	 	 	 	   	 	 	    A _ A g  
 B X 5 J      
 . ; J  q   8 ` v  ^   . Z |   澹湹款欘j                                 7      p@P    7 N     p@P           < <  \
P        3 	`' @           4 `'    `'     `'     `'    `'   3 `'   3 `'   3 `'   3 `'     `'           3 `' @   3 `' @  #            8 : = N P W       ļ Ƽ ͼ       ; = A c e i       ʽ ̽ н  zzzzzzzzz       P  t"       	     	            P  t"  	    	   	 	     5      
lTp@P    6 N          P  t"    	 	    	 	   :    : N          P  t"     	    	   0    3 5 9 [ ] d       ξ о ׾      " & 4 6 : _ a e ~      ȿ ʿ ο       = ? F d f j        ſˑſˑſˑ        P  t"  	    	   	 	            P  t"    	 	    	 	   :    : N   5      
lTp@P    6 N          P  t"       	     	    9         9 ; ? b d h                9 ; @ b d i         ſˑſˑſz                                P  t"     	    	           P  t"  	    	   	 	            P  t"    	 	    	 	   :    : N   5      
lTp@P    6 N          P  t"       	     	    +      ' 6 }       $ L  0 a p         
 x  1 D [  G q       : ^ %   йzzz3 `'           4 `'     `'    `'     `'    `'     `'   5 `'     
lTp@P           P  t"t"    	   	    5          
lTp@P    5      
lTp@P   0   > v  K   / A > `         " ? s  `     < &    # 0 N o @     x  k      * C @ C c    ; f       2 D   C ^ þش  `'   @        3 	`'   3 `'   @ `'     `'            `'     `'    `'     `'   4 `'             `'     `'  G^ {  1      ]  0 O ~     A a     ;  2 X   ' b     + c / c c   # T \ v         L N { } 絞                      5 `'     
lTp@P           < <  \
P         `'   3 `'            `'    `'     `'     `'    `'     `'     `'   4 `'  :}             
   " ү\9                              "       P 3 	`'  	  	 	   	 	 	 	   	 	 	 	   	 	 	   "       P 3 	`'    	 	    	 	 	    	 	 	    	 	   5 5	     
lTp@P    5 	     
lTp@P    "       P 3 	`'     	    	  	    	  	    	    7 5	     p@P    7 	     p@P   " Q        K        и}eMM5                                               5 	     
lTp@P    5 5	     
lTp@P    5 	5	     
lTp@P    5 		     
lTp@P    "       P 3 	`'  	  	 	   	 	 	 	   	 	 	 	   	 	 	   5 5	     
lTp@P    5 5	     
lTp@P    5 5	     
lTp@P               7 [ ] g }      ЭЭ}eeeB++  5 `'     
lTp@P    "       P 3 	`'  	   	   	 	  	   	 	  	   	 	    5 5	     
lTp@P    5 	     
lTp@P    5 	     
lTp@P    "       P 3 	`'  	  	 	   	 	 	 	   	 	 	 	   	 	 	   5 5	     
lTp@P    5 5	     
lTp@P      * = T V ` d v x z            վkkkHkkkHkkkH                              "       P 3 	`'  	  	 	   	 	 	 	   	 	 	 	   	 	 	   5 5	     
lTp@P    5 	     
lTp@P    "       P 3 	`'    	 	    	 	 	    	 	 	    	 	   7 5	     p@P    7 	     p@P           < <  \
P         \     ]     E    ŭ}}eMM5                           5 	     
lTp@P    5 5	     
lTp@P    5 	     
lTp@P    5 	5	     
lTp@P    5 
5	     
lTp@P    5 	     
lTp@P    "       P 3 	`'  	  	 	   	 	 	 	   	 	 	 	   	 	 	   5 5	     
lTp@P               1 ^       B _ m     A s    	 B	 k	 	 	 	 
 8
 Эnidddddddddddddddddddddddddddd C `'   B `'    `'  < <  \
P         `'    `'  >                 5 `'     
lTp@P    "       P 3 	`'  	   	   	 	  	   	 	  	   	 	    5 5	     
lTp@P    5 5	     
lTp@P   '8
 Q
 s
 
 
 
  @ t      S   
 9
 I
 y
 
 
 
 
  A l     / P   v     3 b    ) [     	 ) ^     : n     }   K     z   0 c      0 P v     D h      C `'   C `'   C        C `'  ]   4 m     4 g    3 W        >  ^  t        ! %! D! h! ! ! ! ! " B" m" " " " " # J# L# # # # # $ 2$ g$ $ $ $ !% P% % % % & & & !& R& & & & & & ' Q' S' ' ' ' ( ;( =( l( ( ( ( ( 1) i) ) ) ) ) * =* \* x* * *             `'   C        C `'  ]* * + A+ S+ m+ + + + + 
, !, E, W, q, , , , , 
- &- L- i- - - - - . 9. ^. . . . . / +/ D/ \/ {/ / / / / 0 *0 V0 x0 0 0 0 0 0 1 91 R1 ~1 1 1 1 1 /2 N2 |2 2 2 2 2 2 2 3 p3 3 3 3 þ 3 `'    `'     `'    `'  C        C         `'   C `' pP     `' p@P    C `'  I3 4 C4 M4 4 (5 D5 O5 5 5  6 $6 &6 '6 )6 ,6 d6 e6 6 Q7 S7 U7 7 8 8 8 O9 Q9 f9 9 : : : : : : y; {; }; ; ; 8< :< << >< = = = B> l> > > c? e? þȪȯȑ 	   	    	   	e  	  	   	    	    	   	   	   	  	5                             `'   D        C        C        D `'   D `'    `'   3 `'  5e? A@ @ A A A A A A A A FB ~B B B B B C C )C +C -C /C LC NC ^C `C pC rC C C C C C C C C C C D D ,D .D ?D AD TD VD hD jD D D D D D D D D D D D D E E 4E 6E HE JE [E ]E      `'    `'  $  `'             0 PB D `'     `'    `' &        &   	   	  	e   	           	 D]E zE |E E E E E E E E E E E F F %F 'F DF FF XF ZF kF mF oF qF sF uF wF yF {F }F F F F F F F F F F F F F                                                                                                                                                                                                    $               PB   `'    `'    `'  $  `'             0 PB*                           page numberTresultATcmdTdialmodATcmdl2
ATcmd-longProfile
TblacklistTsecureTcountryTpttTdialc1Indent 1
Caller Id Exa	Tatcmdsum
Caption-tableTab 1 Indent
Ref DocumentsRef Documents-h
S RegisterBit No.	Bit StateCommandCommand Example	Caller IDCaller ID-h
Title NameTitle ManualTitle RockwellTitle Order No.Disclaimer-h
Disclaimer	TrademarkTOC HeadTitle ProprietaryTitle Review	Normal-ljFax Command
Fax Command-h
Parameters	Fax TableFax Table-hExtended CommandIndent 2Bit State-2ATcmd-hATCMD-XlongPattern
ConnectionExampleSyntax
Table Text
Table Text-cjTable Text-hCcodeCcode-h
Table Text-shTable Text 8pt-hTable Text 8ptBit State-3Normal-c
subsublistCaption - Figure	Tresult-h	Tatsum-shTappAIndent 1-cont'dRef Document
Features 2
Features 3	Feature 4
Register ListText I
Indent I-HeadIndent IIndent aEQUInstruction
Indent a-HeadTaskDashIndentIndent a-ODBuildBuild-rightTitleCompanyDash-OD	Order No.	Subhead 1Indent 1-ODNoteRegisterRegister-ODRegister2-ODTask2-ODTask a	ComponentLOFCaption-Figurelev 1
Header C14index-hHidden
Doc Ref -hDoc RefTest Points
Test Points-hTest Points-rjBullet 1Chapter HeadBullet 2
Convention
SubroutineNormal-pCaution
Edit Table
Table GPIOTable text-n
Blank pageTOC Appendix
Trademarks
T-Ref Docs
T-Ref Docs-h	T-DefaultT-Default-h	T-CrystalT-Crystal-h
T-ROM SizeT-ROM Size-hT-ROM Size-nT-ROM SocketT-ROM Socket-hT-Indicator
T-Indicator-hT-ConnectorT-SwitchTindicator-hT-Indicator-hTable Text-cTratings
Tratings-h
Table Text-rjOrder OptionPartLogoDocument
Tconditions-nTabso-nTable Text-12pt-hTable Text-7ptTable Text-6pt
Normal-8ptTmodel-nDoc IDBullet 3Warning	Warning-hSales Offices-h
Sales Officesj                                                     
                $  F       	                                           	 &  0 	 $   0 	 $     	 &  $ 	           	 &  $                                                                                                                                                            0         
                                                                     0                                                                                                                                     h4< x  $
5       h  p@P X !8       |h  p@P X !5       @    p@P `'
8           p@P $	`' 
2       ( p@P `' 
,       p@P h`' 
      8< x  
      < x  
      h< x  
      < x   

%      
p@P `'       !      ,       h   p@P        P          P         P     
      x        7        ( P # p@P                        %      p`  @x  *       p`( 
@P        
p@       p@       	p	 $           p@ 	      p@ 
       p@           x        
p 
       p@	       4p       @t	 #           @h\
   0          
lTp@P h 	              p !      @P "       p@       $	
p@$	 "      \
0( $	\
         $	
p@$	         $	       
p@       8        px       0x       x ,       
x p@P %       @x 
!       "       x #      x $      & ' ( ) %      	&       '       p@8 (      Pp)      h E*       ( & ' ( ) +
p@P h 	        '+      h 	 `Pt",       p@ -       '.      ,P @\
,  %/      p
@P  0      	 1      
p@ 2       p 3       
p 4       `p 5      
lT  -6          
lTp@P  7      8      < x p 9      <   p@):          p@P  );          p@P  +<          
lTp@P  =      \
, 	>      3?      8      p@P  &@       < <  \
P       A      < < %B        h\
P C      p`h\
p D        < )E       h  p@P  ,F       hh  p@P  ,G       h  p@P  ,H       8h  p@P  I      0  /J       h  p@P  )K       h  p@P  L      8 2M       hP   p@P  &N       h  P  .O       h  	p@P 
  ,P       h   p@P  2Q       Dh  p@P  2R       h  p@P  ,S       h  p@P  T        5U       h  !p@P 
d<   ,V       h  p@P  W        h@`'(#
,X      hp@P  Y      , T )Z         p@P $.[       h   p@P  &\       h  @P  /]       h  p@P  ,^       $	h  p@P  _       $	 `        a      ,	, b      
0
 c      \
\
 !d        Lh  `'(# 
)e      h  p@P  
f       x 
g      < x h       i      < x j      < <  k       p@X  l        x   	m      n      +  ,o       x < p@ p        q      (    r       x s      < x &	 '	 (	 )	 
t      < x =u      T < x & ' ( )  TP        (v       < x    4TX        w      x      lTh  y      < x $z      hh< x `'8$  

{      < x *|      lTp@P<x  }      x ~        x       <$	      	x       <   
L      x         <LX       p0p       x hl         L,      x P               x 	  
      ( 
      < x )       	p@P l	      
          
          3           
lTp@P h 2             p@P T 1      P	      & ' ( ) 	h(#`'/      PP       & ' ( ) 	h(#`',             p@P  .          
lTp@P   4          
lTp@P  /           p@P h 1           
lTp@P h       *            p@P  .          
lTp@P h         T$      ( ( 	P 1         < x 	@P 
 .      x  	@P  /        l  & p@P  ,             p@P                                                                    	 
  
   5            ! " # $%$& '(') * +*, -./ 01 2 3 4/5l657m8 9 :7;7<5=> ? @A BCDE F G H I_J K LJM N O P Q R S TMU V WX YTZ [ \] ^ _^`Qa`bQcQde f ghi j kjl mlnlo p qor s t u]v w5x5y z{ |w}|~|}~} 5  5 WW 5575 5q      F2  W:  lC    m _ Q w1 4 4 A ME  F  F  F  
G  G  2G  FG  WG  kG  G  G  G  G            	        #  )  1  F2  F2  3:  W:  HC  lC  qQ  T  ?`  m  z  '                "      s        {  g   ' ) 1 S5 <; @ A I Q T ` k v q    ~  H  4 g q     F  L         I    A I m m  . @ II M S Y Y _ _ k p T{ d  u ՞ D ®  ۹  1   K   q  Z  Q x 6 ] S% R, w1 4 4 4 |8 ; > ME    e                                    	      
       2        #         #                                          	     
          #   
          /              8    '        {             4    $         ,                           ! %    "    #     $    %     &    ' #    (          (         a    !     .    #     .   	 1    
 )    !     !   
 !     %    #     )    )                   #          w    )    (     )    $     #      0                         *     4    *     6   	   0            w    !               -    (     6   	     
     !        
 -     .    !     )        !        ,    4          !    &    (                    #                                      1   C   b                       '  ;  Z  o                .  M  a  t              +  >  B  F  J  N  R  V  u          Y JD G       k$  22  iH  gu    v  ޯ  2  D  u        h      Ϲ      ^  
 >   / @ *D D 	F F G I yK ` F ƌ  N   >  R   0  F     O   {       L C  =     # `T j m o q 9 ) y  *  *  U Ğ b    B       ^ } "      8
  * 3 e? ]E F  	

]  Times New Roman 	Symbol & Arial 
  Chicago 
 Tms Rmn " Helv 
1 Courier  Palatino ME     %   '   6   ;   >                                  
        .  3  6  ]  b  e  v  {  ~              
      "  '  )  P  U  W  h  m  o                  !  2  7  9  x  }            ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !            
               #       h    
E
E          A      5       L. Scott ShumakerL. Scott Shumaker         