[asterisk-users] CDMA Phones

[Robor Oghene]

*Thanks very much, I appreciate!*

On Sat, May 31, 2008 at 10:36 PM, Eric Wieling <eric at fnords.org> wrote:

> ulaw or alaw.
>
> Robor Oghene wrote:
> > Thanks for your response
> >
> > *Which of the codecs supported on asterisk is best for GSM and CDMA
> phones
> > connecting over sip?*
> >
> > On Fri, May 30, 2008 at 8:34 PM, Steve Underwood <steveu at coppice.org>
> wrote:
> >
> >> Julio Arruda wrote:
> >>> Steve Underwood wrote:
> >>>
> >>>> Robor Oghene wrote:
> >>>>
> >>>>> Hi,
> >>>>>
> >>>>> Do CDMA phones use the gsm codec?
> >>>>>
> >>>> Even GSM phones rarely use the GSM 06.10 codec that is in Asterisk
> these
> >>>> days. CDMA never did.
> >>>>
> >>> Isn't AMR supposed to be the codec used in GSM nowadays ? I remember
> >>> seeing something like this in Nortel PVG/Packet Trunking for GSM,
> >>> AMR/AMR-HR or something like that.
> >>>
> >> AMR can be used with 2G GSM, but is most commonly used with 3G UMTS
> >> (along with AMR-WB, the wide band version). The commonest codecs for GSM
> >> are the EFR (enhanced full rate) and HR (half rate) codecs.
>
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