Thank you for the answer, but from "SDP" point of view everything looks OK, I think issue is with my config or transcoding engine:
Side A INVITE-> Proxy/Rtpengine: v=0 o=- 3543840537 1 IN IP4 s=SIPPER for PhonerLite c=IN IP4 side_a t=0 0 m=audio 55062 RTP/AVP 107 8 a=rtpmap:107 opus/48000/2 a=rtpmap:8 PCMA/8000 a=ssrc:1792443851 a=sendrecv Proxy/Rtpengine OK -> Side A: v=0 o=- 3728121777 3728121778 IN IP4 s=pjmedia b=AS:50 t=0 0 a=X-nat:0 m=audio 30254 RTP/AVP 8 c=IN IP4 rtpengine b=TIAS:32000 a=rtpmap:8 PCMA/8000 a=sendrecv a=rtcp:30255 So here must be PCMA in direction from Proxy/Rtpengine -> Side A, but I have opus. On 20 February 2018 at 12:41, Gopalakrishnan N <sai...@gmail.com> wrote: > Hi Denys, > > Am not much user of Kamilio, but am from Telecom background. The reason > for your case is, in side A you have OPUS and in side B already OPUS is > available and since both has the same codec as first priority it will > negotiate itself with same codec and then it will look for other priority. > Remove OPUS from side A and it will automatically go into transcoding mode. > > On Tue, 20 Feb 2018 at 16:17 Denys Pozniak <denys.pozn...@crazycall.com> > wrote: > >> Hello! >> >> Please explain how to achive next: >> >> Side A supports: >> OPUS >> PCMA >> >> Side B supports: >> OPUS >> PCMA >> PCMU >> >> I need to transcode in direction A->B from PCMA to OPUS? >> So should be like this: >> A(PCMA) -> (PCMA)Rtpengine(OPUS)->B(OPUS) >> >> I configured like this: >> rtpengine_offer("codec-mask-PCMA codec-transcode-opus"); >> rtpengine_answer("codec-mask-opus codec-transcode-PCMA"); >> >> But leg from Rtpengine to A has wrong codec (OPUS): >> https://drive.google.com/file/d/14GAIt8lL7Igj9S95b_RS6CXtmGVhjLa1/view >> >> >> >> >> On 19 February 2018 at 13:56, Richard Fuchs <rfu...@sipwise.com> wrote: >> >>> On 2018-02-19 05:48 AM, Denys Pozniak wrote: >>> >>>> Hello! >>>> >>>> Small note. >>>> In case of opus use: codec-transcode-opus (opus is lowercase). >>>> >>> >>> As explained in the readme, the format generally follows the SDP format, >>> including specifying sample rate and number of channels. As an additional >>> parameter, the bitrate can be specified for codecs that support it. >>> >>> Examples: >>> >>> transcode-speex/32000 >>> >>> transcode-opus/48000/2/64000 >>> >>> >>> Cheers >>> >>> _______________________________________________ >>> Kamailio (SER) - Users Mailing List >>> sr-users@lists.kamailio.org >>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>> >> >> >> >> -- >> >> BR >> Denys Pozniak >> _______________________________________________ >> Kamailio (SER) - Users Mailing List >> sr-users@lists.kamailio.org >> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >> > > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users@lists.kamailio.org > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > -- BR Denys Pozniak
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