[asterisk-users] Forcing a CODEC

[amit anand]

Hi

Thats is also one of the reason

On Tue, Nov 15, 2011 at 20:27, <isrlgb at gmail.com> wrote:

> The variable for outbound is (SIP_CODEC_OUTBOUND=g722)
>
> But I think asterisk will try to transcode then because the preferred
> codec on the phone is ulaw or so
>
> -----Original Message-----
> From: "Danny Nicholas" <danny at debsinc.com>
> Sender: asterisk-users-bounces at lists.digium.com
> Date: Tue, 15 Nov 2011 08:50:37
> To: 'Asterisk Users Mailing List - Non-Commercial Discussion'<
> asterisk-users at lists.digium.com>
> Reply-To: Asterisk Users Mailing List - Non-Commercial Discussion
>        <asterisk-users at lists.digium.com>
> Subject: Re: [asterisk-users] Forcing a CODEC
>
> That's one of the uses of the SIP_CODEC dialplan variable.  Just set it in
> the context or the sip.conf or users.conf.  In your particular case, just
> set up a specific context for the IAX calls
> [iax-in]
> Exten => _X.,1,Set(SIP_CODEC=G722)
> Exten => _X.,n,answer()
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jaap Winius
> Sent: Tuesday, November 15, 2011 8:47 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Forcing a CODEC
>
> Hi folks,
>
> How can I take advantage of a high-bandwidth CODEC, like G.722, for
> internal
> communications at my site, but use G.711 (alaw/ulaw) for all other outgoing
> calls? I need G.711 to support Inband DTMF signaling.
>
> As my site has multiple locations that are tied together with IAX trunks, I
> was hoping that it would be possible to specify alaw and ulaw as the first
> two CODEC choices for the SIP phones, as well as in their sip.conf
> configurations, but that I could use the IAX trunks (with bandwidth=high)
> to
> force the phones to use their third CODEC choice, g722, because that would
> be the only CODEC specified for the IAX trunks (following disallow=all).
>
> Unfortunately, that doesn't work. Although the Asterisk console reports
> that
> g722 is being used, when I listen to the connection it's obvious that a
> G.711 CODEC is being used. Curiously, the reverse does
> work: if g722 is specified as the first CODEC of choice for the phones, it
> is possible to use the IAX trunks to force them to use alaw/ulaw instead.
>
> Is a solution to this problem?
>
> I'm using Debian squeeze with Asterisk 1.6.2.9.
>
> Cheers,
>
> Jaap
>
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-- 

Amit Anand


+91 9818559898
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