Learning GSM (part 2)
Day 2 of my
href="http://www.andrerestivo.com/weblog/archives/001932.html">GSM
lessons. Whenever I think things are making sense I discover
another problem GSM has to deal with. No wonder so many calls get
lost. Just so you can get an idea,
onclick="window.open('http://www.andrerestivo.com/weblog/archives/gsmoppsett.html', 'popup', 'width=733,height=962,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0'); return false">
this diagram is a part of what happens when someone from a
external network calls a mobile phone (just the call setup phase).
In the next few days I’m going to learn some GPRS and UMTS (they
told me it gets even more complicated).
lessons. Whenever I think things are making sense I discover
another problem GSM has to deal with. No wonder so many calls get
lost. Just so you can get an idea,
onclick="window.open('http://www.andrerestivo.com/weblog/archives/gsmoppsett.html', 'popup', 'width=733,height=962,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0'); return false">
this diagram is a part of what happens when someone from a
external network calls a mobile phone (just the call setup phase).
In the next few days I’m going to learn some GPRS and UMTS (they
told me it gets even more complicated).
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