[Freeswitch-users] Transcoding iLBC/GSM

[Pete Kelly]

Thanks for the pointers... some CLI sessions with DEBUG on and digging
round the docs got it sorted.

 I needed to specify iLBC at 30i in the codec list.

Pete

On 4 November 2011 16:17, Anthony Minessale <anthony.minessale at gmail.com> wrote:
> not enough data, do you have iLBC in your configs and mod_ilbc loaded?
> you need more data like a trace "console loglevel debug" "sofia global
> siptrace on"
>
> On Fri, Nov 4, 2011 at 9:47 AM, Pete Kelly <pkelly at gmail.com> wrote:
>>
>> Hi
>>
>> I am trying to get freeswitch to bridge 2 calls while maintaining iLBC
>> or GSM for legA, and allowing legB to choose its own codec.
>>
>> This is because legA is on a low bandwidth connection so allowing
>> PCMA/PCMU is unwise.
>>
>> This works fine on a freeswitch install where there is a Sangoma
>> transcoding card installed, however when I try it on Freeswitch with
>> no Transcode card, it just responds with a 488.
>>
>> I read in the docs that iLBC is only transcodable at ptime=30, do you
>> think this could be the reason the transcode is not happening. The SDP
>> looks like this from legA:
>>
>> v=0.
>> o=- 3529404938 3529404938 IN IP4 10.15.20.104.
>> s=pjmedia.
>> c=IN IP4 188.39.51.2.
>> t=0 0.
>> m=audio 4213 RTP/AVP 104 3 98 97 99 8 0 96.
>> a=rtcp:4001.
>> a=rtpmap:104 iLBC/8000.
>> a=rtpmap:3 GSM/8000.
>> a=rtpmap:98 speex/16000.
>> a=rtpmap:97 speex/8000.
>> a=rtpmap:99 speex/32000.
>> a=rtpmap:8 PCMA/8000.
>> a=rtpmap:0 PCMU/8000.
>> a=sendrecv.
>> a=rtpmap:96 telephone-event/8000.
>> a=fmtp:96 0-15.
>>
>> Anyone got any ideas/pointers I can look at?
>>
>> Thanks
>>
>> Pete
>>
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>
>
>
> --
> Anthony Minessale II
>
> FreeSWITCH http://www.freeswitch.org/
> ClueCon http://www.cluecon.com/
> Twitter: http://twitter.com/FreeSWITCH_wire
>
> AIM: anthm
> MSN:anthony_minessale at hotmail.com
> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
> IRC: irc.freenode.net #freeswitch
>
> FreeSWITCH Developer Conference
> sip:888 at conference.freeswitch.org
> googletalk:conf+888 at conference.freeswitch.org
> pstn:+19193869900
>
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>