[Freeswitch-users] Problem with G729a codec

[Steve Underwood]

On 09/11/2013 10:30 PM, smrdoshi wrote:
> Hi Guys,
>
> We are testing calls in FS with SPA942 and PAP2. When we are trying call
> with G729a we are getting below error in fs. We tried with other codecs and
> in that case calls are working fine.
>
> ==
> 2013-09-12 00:09:59.004336 [ERR] mod_sofia.c:2114 CODEC NEGOTIATION ERROR.
> SDP:
> v=0
> o=- 25222 25222 IN IP4 192.168.5.4
> s=-
> c=IN IP4 192.168.5.4
> t=0 0
> m=audio 16468 RTP/AVP 18 101
> a=rtpmap:18 G729a/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=ptime:30
>
> [CS_EXECUTE] [INCOMPATIBLE_DESTINATION]
> ==
>
> I tried to make calls work by changing some of the option in sip profile
> like enabled late negotiation, disable_transcoding=true etc but no success.
>
> Can anybody please take a look and help me to figure out the issue?
>
> Thanks in Advance.
>
> Thanks,
> Sam
>
>
This line:

a=rtpmap:18 G729a/8000

is invalid. It should say:

a=rtpmap:18 G729a/8000

if you want to use G.729 or G.729A

Regards,
Steve