[Asterisk-Users] SIP / PTT over Cellular

[Joseph]

On Tue, 2005-04-05 at 11:08 +0200, Stefan Gofferje wrote:
> Hi folks!
> 
> I have been reading a lot and I found out that PTT over Cellular is 
> based on VoIP, precisely SIP. Does anyone here knows if Asterisk's 
> chan_sip understands the cellular SIP?
> Vodafone Germany has turned down PoC after a testing phase and I would 
> too much like to have my own PoC Server for me and my friends.

Some PTT systems are not Voip like Altell, Orange, and other small
carriers.
They use voice channels and sms to setup call info and maintain
available state information.
The system used is kodiaknetworks.com

> 
> Regards,
> Stefan
> 
-- 
respectfully, Joseph ===============
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