<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">Hi all<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">I'm using freeswitch to call from browser(webrtc) to some sip provider.<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">So, the A-keg is webrtc opus codec and then I bridge it with the sip gateway. <br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">Sip gateway supports g711 only. And it chooses wrong codec and DTMF is not working between them.<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">When bridging to sip, freeswitch sends such SDP<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a Local SDP:<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a v=0<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a o=FreeSWITCH 1509346805 1509346806 IN IP4 x.x.x.x<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a s=FreeSWITCH<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a c=IN IP4 x.x.x.x<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a t=0 0<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a m=audio 31568 RTP/AVP 102 9 0 8 103 101<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:102 opus/48000/2<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=fmtp:102 useinbandfec=1; maxaveragebitrate=14400; maxplaybackrate=8000; sprop-maxcapturerate=8000; ptime=20; minptime=10; maxptim<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">e=40; stereo=1<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:9 G722/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:0 PCMU/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:8 PCMA/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:103 telephone-event/48000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=fmtp:103 0-16<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:101 telephone-event/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=fmtp:101 0-16<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=ptime:20<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=sendrecv<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">Is it possible to send SDP without opus rtpmap? Because SIP gateway choose wrong <br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">telephone-event. the answer of sip gateway is <br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a 2017-10-30 15:46:13.248384 [DEBUG] sofia.c:7058 Remote SDP:<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a v=0<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a o=lvp 8000 8000 IN IP4 y.y.y.y<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a s=SIP Call<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a c=IN IP4 y.y.y.y<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a t=0 0<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a m=audio 22786 RTP/AVP 8 103<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:8 PCMA/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=rtpmap:103 telephone-event/48000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=fmtp:103 0-16<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">72a02659-6c1b-424e-b76a-0a9b16aecc2a a=ptime:20<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">I guess there must be <br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">a=rtpmap:101 telephone-event/8000<br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);"><br></div><div dir="ltr" style="color: rgb(0, 0, 0); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; background-color: rgb(244, 244, 247);">Thanks</div></div></body></html>