[asterisk-users] gsm errors

[ram]

On 8/18/07, Gordon Henderson <gordon+asterisk at drogon.net> wrote:
>
> On Sat, 18 Aug 2007, ram wrote:
>
> > Hi
> >
> > iam using Asteriks 1.2.17
> >
> > Server Side ( provider Side g729)
> > clients side gsm
> >
> > when iam calling, iam getting lot of errors like below
> >
> > and lot of voice breaks
> >
> > Aug 16 21:23:14 WARNING[9521] dsp.c: Inband DTMF is not supported on
> codec
> > gsm. Use RFC2833
> >
> > any suggestions
>
> This might sound obvious, but Use rfc2833.
>
> But apart from that, you're transcoding from GSM (a lossy format) to g729
> (another lossy format) so audio quality is going to be quite poor. Can't
> you stick to either GSM or g729 all the way? What clients are you using
> that only support GSM? (and if they're on a LAN why not use
> G711/uLaw/aLaw?)



My provider support only g729

and my client have callcenter Suite
which support only GSM

any suggestion to come over this problem

ram
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