TID: FMail-W32 2.1.3.7-B20170919   
   RFC-X-No-Archive: Yes   
   TZUTC: 0200   
   CHRS: CP850 2   
   MSGID: 2:280/5555 5cfd3231   
   REPLY: 2:280/5003.4 5cfd2681   
   Hello Kees,   
      
   On Sunday June 09 2019 17:09, you wrote to me:   
      
    KE> I do not know what transport GSM uses, But could not the GSM transport   
    KE> be the Tunnel and carry a vlan to your endpoint.   
      
   I am clueless...   
      
    KE> A quick search shows that GSM is related to SS7. There is no IP in   
    KE> SS7. So you probably get a IP over XXXXX like with ADSL. It is still   
    KE> all Telecom world thinking.   
      
   GSM is part of the link layer. Like ISDN. When I used it for data many moons   
   ago, I called a telephone number for Internet access, just like one did with a   
   POTS modem. It was the same number in fact. It was my understanding that there   
   were modem banks in the GSM exchange of the provider.   
      
    KE> When you are roaming you certainly do not get IP access in the country   
    KE> where you are. You access the net trough the entry point of your   
    KE> provider.   
      
   If you say so. I am out of my leage here...   
      
    KE>  I currently have no active forein Sim cards, so I cannot support my   
    KE>  remarks with real results.   
      
   You can check next time when you venture outside The Netherlands. I will do   
   the same when I get a chance.   
      
      
   Cheers, Michiel   
      
   --- GoldED+/W32-MSVC 1.1.5-b20170303   
    * Origin: he.net certified sage (2:280/5555)   
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