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<div>Hi, I'm connecting Teams with kamailio server. From Kamailio to
teams I have no problems, but from teams to Kamailio yes. Drop the
call..</div><div><br></div><div>With ngrep I see that:</div><div><br></div><div><div>INVITE sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940 SIP/2.0.<br>Record-Route: <sip:FQND_IP;r2=on;lr>.<br>Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.<br>FROM: "Javier Gonz..lez Mu..oz"<sip:+324@sip.pstnhub.microsoft.com:5061;user=phone>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>TO: <sip:+34560@FQND:5061;user=phone>.<br>CSEQ: 1 INVITE.<br>CALL-ID: c1364913e582553a9a9c2544c3583b0a.<br>MAX-FORWARDS: 69.<br>Via: SIP/2.0/UDP 92.222.217.64;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.<br>RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.<br>CONTACT: <sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=b0b53fc5-76ef-4619-9a68-13e0a4eea92d;x-c=c1364913e582553a9a9c2544c3583b0a/d/8/6c25eb3789a14bf188ce6b05b5e27891>.<br>CONTENT-LENGTH: 1091.<br>MIN-SE: 300.<br>SUPPORTED: timer.<br>USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.7.31.1 i.EUNO.0.<br>CONTENT-TYPE: application/sdp.<br>ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY.<br>P-ASSERTED-IDENTITY: <tel:+324>,<sip:EMAIL>.<br>PRIVACY: id.<br>SESSION-EXPIRES: 3600.<br>.<br>v=0.<br>o=- 165103 0 IN IP4 127.0.0.1.<br>s=session.<br>c=IN IP4 52.113.44.8.<br>b=CT:10000000.<br>t=0 0.<br>m=audio 50452 RTP/SAVP 104 9 103 111 18 0 8 97 101 13 118.<br>c=IN IP4 52.113.44.8.<br>a=rtcp:50453.<br>a=ice-ufrag:FZTb.<br>a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.<br>a=rtcp-mux.<br>a=candidate:1 1 UDP 2130706431 52.113.44.8 50452 typ srflx raddr 10.0.33.240 rport 50<br></div></div><div><br></div><div>U CLIENT_IP:55766 -> FQND_IP:5060 #2<br>SIP/2.0 180 Ringing.<br>Via: SIP/2.0/UDP FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.<br>Record-Route: <sip:FQND_IP;lr;r2=on>.<br>Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.<br>Record-Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.<br>Contact: <sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940>.<br>To: <sip:+34560@FQND:5061;user=phone>;tag=de4e6b45.<br>From: "Javier Gonz..lez Mu..oz"<sip:+324@sip.pstnhub.microsoft.com:5061;user=phone>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>Call-ID: c1364913e582553a9a9c2544c3583b0a.<br>CSeq: 1 INVITE.<br>User-Agent: 3CXPhone 6.0.26523.0.<br>Content-Length: 0.<br></div><div><br></div><div>U CLIENT_IP:55766 -> FQND_IP:5060 #3<br>SIP/2.0 200 OK.<br>Via: SIP/2.0/UDP FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.<br>Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.<br>Record-Route: <sip:FQND_IP;lr;r2=on>.<br>Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.<br>Record-Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.<br>Contact: <sip:1005@CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940>.<br>To: <sip:+34560@FQND:5061;user=phone>;tag=de4e6b45.<br>From: "Javier Gonz..lez Mu..oz"<sip:+324@sip.pstnhub.microsoft.com:5061;user=phone>;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.<br>Call-ID: c1364913e582553a9a9c2544c3583b0a.<br>CSeq: 1 INVITE.<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE.<br>Content-Type: application/sdp.<br>Supported: replaces.<br>User-Agent: 3CXPhone 6.0.26523.0.<br>Content-Length: 1067.<br>.<br>v=0.<br>o=3cxVCE 324945090 117647850 IN IP4 .<br>s=3cxVCE Audio Call.<br>t=0 0.<br>m=audio 0 RTP/SAVP 104 9 103 111 18 0 8 97 101 13 118.<br>c=IN IP4 52.113.44.8.<br>a=rtpmap:104 SILK/16000.<br>a=rtpmap:9 G722/8000.<br>a=rtpmap:103 SILK/8000.<br>a=rtpmap:111 SIREN/16000.<br>a=fmtp:111 bitrate=16000.<br>a=rtpmap:18 G729/8000.<br>a=fmtp:18 annexb=no.<br>a=rtpmap:0 PCMU/8000.<br>a=rtpmap:8 PCMA/8000.<br>a=rtpmap:97 RED/8000.<br>a=rtpmap:101 telephone-event/8000.<br>a=fmtp:101 0-16.<br>a=rtpmap:13 CN/8000.<br>a=rtpmap:118 CN/16000.<br>a=rtcp:50453.<br>a=ice-ufrag:FZTb.<br>a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.<br>a=rtcp-mux.<br>a=candidate:1 1 UDP 213<br></div><div><br></div><div>I never received ACK..</div><div><br></div><div>In my configuration:</div><div><br></div><div>Kamailio.cfg:</div><div><br></div><div>#!KAMAILIO<br>#!define WITH_TLS</div><div><br></div><div>event_route[tm:local-request] {<br><br> if(is_method("OPTIONS") && $ru =~ "<a href="http://pstnhub.microsoft.com" target="_blank">pstnhub.microsoft.com</a>") {<br> append_hf("Contact: <sip:FQND:5061;transport=tls>\r\n");<br> }<br> xlog("L_INFO", "Sent out tm request: $mb\n");<br>}</div><div><br></div><div>request_route{</div><div><br></div><div> remove_hf("Route");<br> if (is_method("INVITE|SUBSCRIBE")) {<br> xlog("L_INFO","$fU is trying to call to $rU con valores $tu\n");<br> $rU="1005";<br> }</div><div>}</div><div><br></div><div>What I'm doing wrong?</div><div><br></div><div>I don't understand why not received ACK..</div><div><br></div><div>Could anyone help me?</div><div><br></div><div>Thanks</div>
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