[Freeswitch-users] Where is that codec list coming from?

[Anthony Minessale]

yah so the codec chosen by the inbound leg is always offered in the outbound
sdp to try and prevent transcoding.
if you set {absolute_codec_string=G722} in the bridge string you will bypass
this feature.


On Wed, Dec 16, 2009 at 1:41 PM, Kristian Kielhofner <
kristian.kielhofner at gmail.com> wrote:

> Sure...  The call comes up as PCMU:
>
>   INVITE sip:5888 at 10.70.0.99 <sip%3A5888 at 10.70.0.99> SIP/2.0
>   Call-ID: 80ea31a017f6de1d53e4a9c52f00
>   CSeq: 1 INVITE
>   From: sip:9413122830 at smh.sip.local;tag=80ea31a017f6de1d43e4a9c52f00
>   Record-Route: <sip:10.70.0.65:5060;lr>,<sip:10.70.0.69;lr;transport=tcp>
>   To: "5888" <sip:5888 at 10.70.0.99 <sip%3A5888 at 10.70.0.99>>
>   Via: SIP/2.0/UDP
> 10.70.0.65:5060;branch=z9hG4bK838383030303565656105e9.0,SIP/2.0/TCP
>
> 10.70.0.69;psrrposn=2;received=10.70.0.69;branch=z9hG4bK80ea31a017f6de1d63e4a9c52f00
>   Content-Length: 206
>   Content-Type: application/sdp
>   Contact: <sip:9413122830 at 10.70.0.69 <sip%3A9413122830 at 10.70.0.69>
> ;transport=tcp>
>   Max-Forwards: 70
>   User-Agent: Avaya CM/R015x.02.0.947.3
>   Allow:
> INVITE,CANCEL,BYE,ACK,PRACK,SUBSCRIBE,NOTIFY,REFER,OPTIONS,INFO,PUBLISH
>   Supported: timer,replaces,join,histinfo,100rel
>   Alert-Info: <cid:external at 10.70.0.99 <cid%3Aexternal at 10.70.0.99>
> >;avaya-cm-alert-type=external
>   Min-SE: 1200
>   Session-Expires: 1200;refresher=uac
>   P-Asserted-Identity: sip:9413122830 at smh.sip.local
>   P-Charging-Vector: icid-value="AAS:13283-a031ea801def6179c4a3ed3f52"
>   History-Info: <sip:5888 at 10.70.0.99 <sip%3A5888 at 10.70.0.99>
> >;index=1,"5888"
> <sip:5888 at 10.70.0.99 <sip%3A5888 at 10.70.0.99>>;index=1.1
>
>   v=0
>   o=- 1 1 IN IP4 10.70.0.69
>   s=-
>   c=IN IP4 10.70.0.22
>   b=AS:64
>   t=0 0
>   m=audio 2176 RTP/AVP 18 0 101
>   a=rtpmap:18 G729/8000
>   a=fmtp:18 annexb=no
>   a=rtpmap:0 PCMU/8000
>   a=rtpmap:101 telephone-event/8000
>
>  We don't support G729 so this call comes up as PCMU when we answer
> and then that codec is first in the codec list...
>
> On Wed, Dec 16, 2009 at 2:26 PM, Anthony Minessale
> <anthony.minessale at gmail.com> wrote:
> > can you do another trace to show the inbound invite too?
> >
>
> --
> Kristian Kielhofner
> http://www.astlinux.org
> http://blog.krisk.org
> http://www.star2star.com
> http://www.submityoursip.com
> http://www.voalte.com
>
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>



-- 
Anthony Minessale II

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