[Freeswitch-users] Freeswitch doesnt transcode

[Rajil Saraswat]

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