[Freeswitch-users] Freeswitch doesnt transcode

Mon Feb 15 01:07:14 MSK 2016

This behavior changed a while ago. This was dictates by ever growing SDPs and exceeding MTUs causing udp fragmentation. Udp does not deal with fragmentation and everyone refuses to fully implement sip over tcp for some reason even tho a ton of things support it and the RFCs require it

Sent from my iPhone

> On Feb 14, 2016, at 3:37 PM, Rajil Saraswat <rajil.s at gmail.com> wrote:
> 
> Thanks, after setting media_mix_inbound_outbound_codecs=true,
> transcoding happens automatically.  I remember not setting this
> variable in other installations and transcoding used to work out of
> the box. Is media_mix_inbound_outbound_codecs=true default in
> Freeswitch?
> 
>> On 14 February 2016 at 13:56, Russell Treleaven <rtreleaven at bunnykick.ca> wrote:
>> fyi https://freeswitch.org/confluence/display/FREESWITCH/Codec+Negotiation
>> 
>>> On Sun, Feb 14, 2016 at 2:04 PM, Rajil Saraswat <rajil.s at gmail.com> wrote:
>>> 
>>> The siptrace is at http://pastebin.com/xiGqtj1Y
>>> 
>>> The call is being made from 303 (Android/CSipsimple with OPUS codec)
>>> to 208 (pjsua test client with PCMU codec). The error is on line 545.
>>> 
>>> On 14 February 2016 at 11:28, Giovanni Maruzzelli <gmaruzz at gmail.com>
>>> wrote:
>>>> How you originate the call? Is a bridge? From which phone?
>>>> 
>>>> Also, please pastebin the complete sip trace (from start of leg A to end
>>>> of
>>>> both legs) and put here a link to pastebin
>>>> 
>>>> Il 14/Feb/2016 03:54, "Rajil Saraswat" <rajil.s at gmail.com> ha scritto:
>>>>> 
>>>>> Hello,
>>>>> 
>>>>> I have a remote sip phone (Linksys SPA3102) which only supports PCMU.
>>>>> When I call to this remote sip phone i get a 406 error that opus is
>>>>> not supported as shown by the sip trace below. However, if I force the
>>>>> codec to absolute like this
>>>>> {absolute_codec_string='PCMU,PCMA'}sofia/internal/303 at 192.168.1.5
>>>>> the call works fine.
>>>>> 
>>>>> Is there anyway I can make FreeSWITCH to automatically transcode
>>>>> without forcing the codec string in the dial plan?
>>>>> 
>>>>> The codec preferences is set as  global_codec_prefs=OPUS,PCMU,PCMA and
>>>>> outbound_codec_prefs=PCMU,PCMA,GSM
>>>>> 
>>>>> ---------------------------siptrace--------------------------------
>>>>> 
>>>>> recv 333 bytes from udp/[192.168.1.5]:5060 at 08:02:16.368499:
>>>>> 
>>>>> 
>>>>> ------------------------------------------------------------------------
>>>>>   SIP/2.0 406 Not Acceptable
>>>>>   Via: SIP/2.0/UDP
>>>>> 
>>>>> 
>>>>> 192.168.1.111;rport=5060;received=192.168.1.111;branch=z9hG4bKeS356tttajjej
>>>>>   Call-ID: 00ff246a-4d66-1234-f4b2-74d02b7a3124
>>>>>   From: "202" <sip:202 at 192.168.1.111>;tag=DFX0FUvr2vNcm
>>>>>   To: <sip:303 at 192.168.1.5>;tag=htMF9ckdglw3EJRZaILd6XWt4uVKAO8q
>>>>>   CSeq: 87372504 INVITE
>>>>>   Content-Length:  0
>>>>> 
>>>>> 
>>>>> 
>>>>> ------------------------------------------------------------------------
>>>>> send 324 bytes to udp/[192.168.1.5]:5060 at 08:02:16.368591:
>>>>> 
>>>>> 
>>>>> ------------------------------------------------------------------------
>>>>>   ACK sip:303 at 192.168.1.5 SIP/2.0
>>>>>   Via: SIP/2.0/UDP 192.168.1.111;rport;branch=z9hG4bKeS356tttajjej
>>>>>   Max-Forwards: 68
>>>>>   From: "202" <sip:202 at 192.168.1.111>;tag=DFX0FUvr2vNcm
>>>>>   To: <sip:303 at 192.168.1.5>;tag=htMF9ckdglw3EJRZaILd6XWt4uVKAO8q
>>>>>   Call-ID: 00ff246a-4d66-1234-f4b2-74d02b7a3124
>>>>>   CSeq: 87372504 ACK
>>>>>   Content-Length: 0
>>>>> 
>>>>> 
>>>>> 
>>>>> ------------------------------------------------------------------------
>>>>> 2016-02-14 08:02:16.356283 [DEBUG] sofia.c:6760 Channel
>>>>> sofia/internal/303 at 192.168.1.5 entering state [terminated][406]
>>>>> 2016-02-14 08:02:16.356283 [NOTICE] sofia.c:7779 Hangup
>>>>> sofia/internal/303 at 192.168.1.5 [CS_CONSUME_MEDIA]
>>>>> [SERVICE_NOT_IMPLEMENTED]
>>>>> 
>>>>> Thanks
>>>>> Rajil
>>>>> 
>>>>> 
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>> 
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://confluence.freeswitch.org
>>>>> http://www.cluecon.com
>>>>> 
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
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>>>>> 
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>>>>> http://www.freeswitch.org
>>>> 
>>>> 
>>>> 
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>> 
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>> 
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>>> 
>>> _________________________________________________________________________
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>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>> 
>>> Official FreeSWITCH Sites
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>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>> 
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>> 
>> 
>> 
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>> 
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>> 
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> 
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services: 
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
> 
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