You have to deal with rtp profiles:
*> RTP/AVP, RTP/SAVP, UDP/TLS/RTP/SAVP, RTP/AVPF, RTP/SAVPF, UDP/TLS/RTP/SAVPF* Take a look closer to documentation: https://kamailio.org/docs/modules/6.0.x/modules/rtpengine.html#rtpengine.f.rtpengine_offer чт, 18 сент. 2025 г. в 20:35, Fernando Lopes via sr-users < [email protected]>: > Hello everyone, > > I'm currently trying to make WebRTC-to-SIP calls. My setup is: WebRTC → > WSS → Kamailio → UDP → Asterisk, using rtpengine. I have a route named > GET_ICE that is called in onreply_route. > Everything else works: SIP-to-SIP calls and WebRTC messaging are fine. > Only WebRTC-to-SIP calls have audio issues. I've tested many different ICE > flags, but without success. In my testing I think I've managed to get audio > to kamailio but not to webrtc, but decided to rollback to start to get help. > > In my PJSIP configuration, I allow these codecs: > allow=g722,ulaw,vp9,vp8,h264 > > My Kamailio code: > route[GET_ICE] { > if ( $proto == "wss" ) { > if (is_ip_rfc1918("$si")) { > $dlg_var(ice) = " "; > } else { > $dlg_var(ice) = " ICE=remove RTP "; > > } > } else { > $dlg_var(ice) = "ICE=FORCE"; > } > } > > route[BUILD_RTPENGINE_PARAMETER] { > route(SET_RTP_DIRECTION); # returns $dlg_var(rtp_direction) > if ( is_method("INVITE") ) { > route(GET_ICE); # returns $dlg_var(ice) > } > > xlog("L_WARN", "[BUILD_RTPENGINE_PARAMETER] > > $dlg_var(rtp_direction)\n"); > $var(rtp_param) = "replace-origin replace-session-connection " + > $dlg_var(ice) + " " + $dlg_var(rtp_direction); > xlog("L_WARN", "[RTPENGINE]: Method $rm status $rs protocol: > $dlg_var(call_type) -> $dlg_var(rtp_direction) -> [$dlg_var(ice)]\n"); > xlog("L_WARN", "[RTPENGINE]: Param: [$var(rtp_param)]\n"); > rtpengine_manage($var(rtp_param)); > } > > My logs: > > 3(47) WARNING: <script>: [REPLY] 1xx or 2xx received > 3(47) WARNING: <script>: [SET_RTP_DIRECTION] -> reply from internal = > direction=internal direction=external > 3(47) WARNING: <script>: [BUILD_RTPENGINE_PARAMETER] > direction=internal > direction=external > 3(47) WARNING: <script>: [RTPENGINE]: Method INVITE status 200 protocol: > <null> -> direction=internal direction=external -> [] > 3(47) WARNING: <script>: [RTPENGINE]: Param: [replace-origin > replace-session-connection direction=internal direction=external] > [1758217893.108564] INFO: [ID="m7e648isjm9n96ti62k9"]: [control] Received > command 'answer' from 10.5.0.8:42938 > [1758217893.108583] INFO: [ID="m7e648isjm9n96ti62k9"]: [core] > replace-session-connection flag encountered, but not supported anymore. > [1758217893.108998] WARNING: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1"]: [core] ICE restart > detected, but reset not allowed at this point > [1758217893.109379] INFO: [ID="m7e648isjm9n96ti62k9"]: [control] Replying > to 'answer' from 10.5.0.8:42938 (elapsed time 0.000804 sec) > [1758217893.109411] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [ice] > ICE negotiated: peer for component 1 is 10.5.0.2:28384 > [1758217893.109418] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [ice] > ICE negotiated: local interface 10.5.0.8 > > [1758217893.208990] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [ice] > ICE negotiated: peer for component 1 is 10.5.0.2:28384 > [1758217893.209036] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [ice] > ICE negotiated: local interface 10.5.0.8 > [1758217894.111112] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: > [crypto] DTLS: Peer certificate accepted > [1758217894.112292] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: > [crypto] DTLS-SRTP successfully negotiated using AES_CM_128_HMAC_SHA1_80 > [1758217894.112341] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: > [crypto] DTLS-SRTP successfully negotiated using AES_CM_128_HMAC_SHA1_80 > [1758217896.299109] INFO: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [core] > Confirmed peer address as 10.5.0.2:28384 > [1758217896.299174] ERR: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [srtp] > SRTP output wanted, but no crypto suite was negotiated > [1758217901.298677] ERR: [ID="m7e648isjm9n96ti62k9" > tag="f03487ad-0be2-49d5-9452-289c407db828" index="1" port="14656"]: [rtcp] > SRTCP output wanted, but no crypto suite was negotiated > > [1758217930.743494] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > Closing call due to timeout > [1758217930.743636] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > Final packet stats: > [1758217930.743651] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --- Tag '2bad2cacef0945b1a506a198aeb4ae01', created 1:00 ago for branch '' > [1758217930.743659] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > ------ Media #1 (audio over RTP/AVP) using unknown codec > [1758217930.743670] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --------- Port 10.5.0.8:15028 <> 172.31.208.1:4000 , SSRC 0, in > 0 p, 0 b, 0 e, 60 ts, out 0 p, 0 b, 0 e > [1758217930.743677] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --------- Port 10.5.0.8:15029 <> 172.31.208.1:4001 (RTCP), > SSRC 0, in 0 p, 0 b, 0 e, 60 ts, out 0 p, 0 b, 0 e > [1758217930.743683] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --- Tag '88cf8c49-cdfc-475e-8075-a3ce0a36ecca', created 1:00 ago for branch > '' > [1758217930.743687] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > ------ Media #1 (audio over RTP/AVP) using unknown codec > [1758217930.743693] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --------- Port 10.5.0.8:17956 <> 10.5.0.2:64570, SSRC 0, in > 0 p, 0 b, 0 e, 60 ts, out 0 p, 0 b, 0 e > [1758217930.743699] INFO: [ID="483961fa065a4df9b5f76059c8a1a3e3"]: [core] > --------- Port 10.5.0.8:17957 <> 10.5.0.2:64571 (RTCP), > SSRC 0, in 0 p, 0 b, 0 e, 60 ts, out 0 p, 0 b, 0 e > > Thank you. > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions -- > [email protected] > To unsubscribe send an email to [email protected] > Important: keep the mailing list in the recipients, do not reply only to > the sender! >
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