Push-to-talk, at least the version currently marketed by Sprint/Nextel on
cellphones, is based on Motorola's proprietary iDEN network; I don't know that
there's a great deal of information available on using iDEN, plus it'd require
a dedicated additional network stack beyond GSM...
ke, 2006-12-13 kello 10:26 -0800, [EMAIL PROTECTED] kirjoitti:
I suppose everyone is familiar with the Nextel feature that behaves a bit like
a walkie-talkie. In summary, you can contact anyone within certian groups in a
half-duplex (meaning only one talks at a time) push-to-talk like
ke, 2006-12-13 kello 20:16 +, Ole Tange kirjoitti:
I am wondering why you want push-to-talk when you can have VoIP using
SIP or just a normal GSM conversation? Can you elaborate on why?
Full-fledged VOIP over GPRS is iffy due to quality of service issues
that don't hamper the playback of
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