[asterisk-users] g729a compatibility

[Elliot Murdock]

Hello!

Thank you for that piece of information.  Which RFC does it state that
the audio name is "G729"?

Thanks,
Elliot

On Thu, Jul 2, 2009 at 12:16 AM, Kevin P. Fleming<kpfleming at digium.com> wrote:
> Elliot Murdock wrote:
>> Hello!
>>
>> I have a sip device that is sending in the SDP:
>>
>> rtpmap:98 g729a
>>
>> It does not seem like Asterisk is negotiating the codec properly,
>> because while the call rings, the rtp lines fail.  However, on other
>> sip devices that have "rtpmap:18 g729" in their SDP, things work fine
>> with Digium's commercial g729 license.
>>
>> How do I get "98 g729a" recognized by Asterisk?
>
> You don't. That's not a standards-compliant way of reporting G.729A in
> SDP. The RFC says it should be 'G729', but Asterisk also accepts 'G.729'
> and 'G729A'. It does not accept any lowercase form of the codec name.
>
> --
> Kevin P. Fleming
> Digium, Inc. | Director of Software Technologies
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> skype: kpfleming | jabber: kpfleming at digium.com
> Check us out at www.digium.com & www.asterisk.org
>
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