Re[2]: gsm specifications

Sergey _paul at bk.ru
Wed Jul 6 14:51:29 UTC 2011


Thank you!

06 июля 2011, 18:28 от Alexander Huemer <alexander.huemer at xx.vu>:
> http://openbsc.osmocom.org/trac/wiki/GSMStandards
> 
> On Wed, Jul 06, 2011 at 05:28:31PM +0400, Sergey wrote:
> > Hello, everyone!
> > 
> > I've got c123-compatible phone, the firmware is running and that's really
> cool.
> > Testing branch even sometimes says that a call has been released, but it
> doesn't seem to reach the target (no ringing).
> > I would like to debug and maybe contribute, but...
> > 
> > But here is a problem: I don't understand GSM and can't find reasonable
> documents to read. 
> > I've looked through a book on gsm "GSM and Personal Communications
> Handbook", but it doesn't seem to provide enough info.
> > Specifications of GSM I found at http://www.3gpp.org/specification-numbering
> are too plentiful.
> > 
> > Could you please advise some books to understand the protocols? 
> > Or could you tell me where to look for specifications and which should be
> read first (an what to be read at all) ?
> > 


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