[Freeswitch-users] mod_conference wrong codec for auto_outcall b-leg

Wed Sep 19 12:36:33 MSD 2012

Do you have some options/variables in mind I should try using 
auto_outcall_prefix? I tried setting codec_string=silk at 24000 and 
absolute_codec_string=silk at 24000, but still FS offers only SILK/8000 to 
the b-leg.

Am 19.09.2012 01:35, schrieb Seven Du:
> maybe try to set 
> http://wiki.freeswitch.org/wiki/Variable_conference_auto_outcall_prefix ?
>
> -- 
> Seven Du
> Sent with Sparrow <http://www.sparrowmailapp.com/?sig>
>
> On Tuesday, September 18, 2012 at 9:22 PM, Oliver Saggau | Sysvision 
> GmbH wrote:
>
>> Hi everyone,
>> I got a strange problem with mod_conference and auto_outcall taking the
>> wrong codec for b-leg. For what I can see from the log everything seems
>> fine. The a-leg calls with the following SDP:
>>
>> 2012-09-18 08:57:47.410023 [DEBUG] sofia.c:6293 Remote SDP:
>> v=0
>> o=- 3556961565 3556961565 IN IP4 10.20.30.125
>> s=pjmedia
>> t=0 0
>> m=audio 4000 RTP/AVP 99 101
>> c=IN IP4 10.20.30.125
>> a=rtpmap:99 SILK/24000
>> a=fmtp:99 useinbandfec=0
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:101 0-15
>> a=rtcp:4001 IN IP4 10.20.30.125
>>
>> And the SILK/24000 codec is accepted according to the log file:
>> 2012-09-18 08:57:47.650018 [DEBUG] sofia_glue.c:3077 Set Codec
>> sofia/internal/1000004 at 10.20.30.240 <mailto:1000004 at 10.20.30.240> 
>> SILK/24000 20 ms 480 samples 40000 bits
>> 2012-09-18 08:57:47.650018 [DEBUG] switch_core_codec.c:111
>> sofia/internal/1000004 at 10.20.30.240 <mailto:1000004 at 10.20.30.240> 
>> Original read codec set to SILK:120
>> 2012-09-18 08:57:47.650018 [DEBUG] mod_sofia.c:836 Local SDP
>> sofia/internal/1000004 at 10.20.30.240 <mailto:1000004 at 10.20.30.240>:
>> v=0
>> o=FreeSWITCH 1347951445 1347951446 IN IP4 10.20.30.240
>> s=FreeSWITCH
>> c=IN IP4 10.20.30.240
>> t=0 0
>> m=audio 21622 RTP/AVP 99 101
>> a=rtpmap:99 SILK/24000
>> a=fmtp:99 useinbandfec=0; usedtx=0; maxaveragebitrate=40000
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:101 0-16
>> a=silenceSupp:off - - - -
>> a=ptime:20
>> a=sendrecv
>>
>> The conference get's created and activates the read/write codecs for the
>> first member:
>> 2012-09-18 08:57:47.990021 [DEBUG] mod_conference.c:7092 Raw Codec
>> Activation Success L16 at 24000hz 1 channel 20ms
>> 2012-09-18 08:57:47.990021 [DEBUG] mod_conference.c:7137 Raw Codec
>> Activation Success L16 at 48000hz 1 channel 20ms
>>
>> After that he's trying to do the auto_outcall and that's where things
>> get weird:
>> EXECUTE sofia/internal/1000004 at freeswitch.aws.hosts.corpex.de 
>> <mailto:1000004 at freeswitch.aws.hosts.corpex.de>
>> conference_set_auto_outcall(sofia/internal/sip:1000003 at 10.20.30.108 
>> <mailto:1000003 at 10.20.30.108>:63741;transport=UDP;ob)
>> 2012-09-18 08:57:47.990021 [NOTICE] switch_channel.c:951 New Channel
>> sofia/internal/sip:1000003 at 10.20.30.108 
>> <mailto:1000003 at 10.20.30.108>:63741
>> [0236d005-1ff0-4f13-9370-bf7736087dd0]
>> 2012-09-18 08:57:47.990021 [DEBUG] sofia_glue.c:2637 Local SDP:
>> v=0
>> o=FreeSWITCH 1347952749 1347952750 IN IP4 10.20.30.240
>> s=FreeSWITCH
>> c=IN IP4 10.20.30.240
>> t=0 0
>> m=audio 20318 RTP/AVP 98 0 8 101 13
>> a=rtpmap:98 SILK/8000
>> a=fmtp:98 useinbandfec=1; usedtx=0
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:101 0-16
>> a=ptime:20
>> a=sendrecv
>> 2012-09-18 08:57:52.590016 [DEBUG] mod_conference.c:7092 Raw Codec
>> Activation Success L16 at 8000hz 1 channel 20ms
>> 2012-09-18 08:57:52.590016 [DEBUG] mod_conference.c:7137 Raw Codec
>> Activation Success L16 at 48000hz 1 channel 20ms
>>
>> Why is FS only offering SILK/8000 for b-leg? My outbound_codec_prefs is
>> configured like this:
>> outbound_codec_prefs=silk at 24000,silk at 16000,silk at 8000,PCMU,PCMA,GSM
>>
>> Thanks for your help,
>> Oliver
>>
>> _________________________________________________________________________
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>>
>> 
>> 
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>
>
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>
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