Hi, Any help on this topic?
Regards, Angelo Στις Πέμ 26 Ιαν 2023 στις 9:33 μ.μ., ο/η Angelo Sipper <[email protected]> έγραψε: > Hi, > > My setup has: (TLS)UAC 77.1.1.1 -> (TLS)Kamailio 17.17.17.211 (UDP) -> > (UDP)Kamailio 17.17.17.181 (UDP) -> Carrier(UDP) > Both Kamailio are 4.3 with minor modifications on default cfg, and Topoh > and TLS modules are used. > > I am having an issue on some outbound calls from nated UACs. On these > calls our SBC sometimes receives reverse invites from the carrier side > within the call. When this happens, my SBC(17.17.17.211) sends the invite > to UAC and the UAC sends back 200 OK (SDP). Unfortunately my > SBC(17.17.17.211) sends back the ACK not to the correct UAC public port but > instead to the UAC internal port making the call to crash with several > retries from my SBC to send 200 OK as ACK was never received from UAC! > > If you look the below traces of reverse invite past within the call, the > reinvite has port private 20125 and alias the public port 2314 of UAC but > the ACK bellow is send to 20125 and not to 2314 > > 2023/01/26 09:48:30.668634 17.17.17.181:5060 -> 17.17.17.211:5060 > INVITE sip:[email protected]:20125;alias=77.1.1.1~2314~1 SIP/2.0 > Via: SIP/2.0/UDP > 17.17.17.181;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0 > From: <sip:[email protected]>;tag=gK0e80b4b9 > To: "301234567890" <sip:[email protected]>;tag=07ece97c > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Max-Forwards: 69 > Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS > Accept: application/sdp, application/isup, application/dtmf, > application/dtmf-relay, multipart/mixed > Supported: timer > Session-Expires: 600;refresher=uas > Min-SE: 90 > Content-Length: 297 > Content-Disposition: session; handling=required > Content-Type: application/sdp > Route: > <sip:17.17.17.211;lr;ftag=07ece97c;vsf=AAAAAFpUAgECBwAACnAGAW5FUF4ZXUdDUUhEX1hRUC5ldQ--;vst=AAAAAAAAAAAAAAAAAAAAAABCXkYAQkdeVEJDQVtSVBRQRTYw;did=5fc.669;nat=yes> > Contact: <sip:[email protected]> > > v=0 > o=Sonus_UAC 14218 13519 IN IP4 14.1.1.30 > s=SIP Media Capabilities > c=IN IP4 14.1.1.30 > t=0 0 > m=audio 18600 RTP/AVP 8 18 101 > a=maxptime:20 > a=rtpmap:8 PCMA/8000 > a=rtpmap:18 G729/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:18 annexb=no > a=fmtp:101 0-15 > a=sendrecv > a=rtcp:18601 > > > 2023/01/26 09:48:30.679743 17.17.17.211:5060 -> 17.17.17.181:5060 > SIP/2.0 100 trying -- your call is important to us > Via: SIP/2.0/UDP > 17.17.17.181;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0;rport=5060 > From: <sip:[email protected]>;tag=gK0e80b4b9 > To: "301234567890" <sip:[email protected]>;tag=07ece97c > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Server: Supervoice > Content-Length: 0 > > > > 2023/01/26 09:48:30.740803 17.17.17.211:5060 -> 77.1.1.1:2314 > INVITE sip:[email protected]:20125 SIP/2.0 > Via: SIP/2.0/UDP > 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0 > Via: SIP/2.0/UDP > 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0 > From: <sip:[email protected]:5060>;tag=gK0e80b4b9 > To: "301234567890" <sip:[email protected]:20125>;tag=07ece97c > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Max-Forwards: 68 > Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS > Accept: application/sdp, application/isup, application/dtmf, > application/dtmf-relay, multipart/mixed > Supported: timer > Session-Expires: 600;refresher=uas > Min-SE: 90 > Content-Length: 297 > Content-Disposition: session; handling=required > Content-Type: application/sdp > Contact: <sip:[email protected]> > > v=0 > o=Sonus_UAC 14218 13519 IN IP4 14.1.1.28 > s=SIP Media Capabilities > c=IN IP4 14.1.1.28 > t=0 0 > m=audio 13288 RTP/AVP 8 18 101 > a=maxptime:20 > a=rtpmap:8 PCMA/8000 > a=rtpmap:18 G729/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:18 annexb=no > a=fmtp:101 0-15 > a=sendrecv > a=rtcp:13289 > > > 2023/01/26 09:48:30.893512 77.1.1.1:2314 -> 17.17.17.211:5060 > SIP/2.0 100 Trying > Via: SIP/2.0/UDP > 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0 > Via: SIP/2.0/UDP > 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0 > To: "301234567890" <sip:[email protected]:20125>;tag=07ece97c > From: <sip:[email protected]:5060>;tag=gK0e80b4b9 > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Content-Length: 0 > > > > 2023/01/26 09:48:31.026742 77.1.1.1:2314 -> 17.17.17.211:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP > 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0 > Via: SIP/2.0/UDP > 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0 > Require: timer > Contact: <sip:[email protected]:20125> > To: "301234567890"<sip:[email protected]:20125>;tag=07ece97c > From: <sip:[email protected]:5060>;tag=gK0e80b4b9 > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Session-Expires: 600;refresher=uas > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, > REFER, INFO, MESSAGE, UPDATE > Content-Type: application/sdp > Supported: replaces, timer > User-Agent: 3CXPhoneSystem 18.0.6.905 (905) > Content-Length: 259 > > v=0 > o=3cxPS 792019937001472 2393157908037634 IN IP4 77.1.1.1 > s=3cxPS Audio call > c=IN IP4 77.1.1.1 > t=0 0 > m=audio 9054 RTP/AVP 8 18 101 > a=rtpmap:8 PCMA/8000 > a=rtpmap:18 G729/8000 > a=fmtp:18 annexb=no > a=rtpmap:101 telephone-event/8000 > a=sendrecv > > > 2023/01/26 09:48:31.093656 17.17.17.211:5060 -> 17.17.17.181:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP > 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0 > Require: timer > Contact: <sip:[email protected]:20125> > To: "301234567890" <sip:[email protected]>;tag=07ece97c > From: <sip:[email protected]>;tag=gK0e80b4b9 > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 INVITE > Session-Expires: 600;refresher=uas > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, > REFER, INFO, MESSAGE, UPDATE > Content-Type: application/sdp > Supported: replaces, timer > User-Agent: 3CXPhoneSystem 18.0.6.905 (905) > Content-Length: 276 > > v=0 > o=3cxPS 792019937001472 2393157908037634 IN IP4 14.1.1.28 > s=3cxPS Audio call > c=IN IP4 14.1.1.28 > t=0 0 > m=audio 13278 RTP/AVP 8 18 101 > a=rtpmap:8 PCMA/8000 > a=rtpmap:18 G729/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:18 annexb=no > a=sendrecv > a=rtcp:13279 > > > 2023/01/26 09:48:31.254591 17.17.17.181:5060 -> 17.17.17.211:5060 > ACK sip:[email protected]:20125 SIP/2.0 > Via: SIP/2.0/UDP > 17.17.17.181;branch=z9hG4bK7b5d.48f49235d45a0f6f9efdad9d6d8224bd.0 > From: <sip:[email protected]>;tag=gK0e80b4b9 > To: "301234567890" <sip:[email protected]>;tag=07ece97c > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 ACK > Max-Forwards: 69 > Content-Length: 0 > Route: > <sip:17.17.17.211;lr;ftag=07ece97c;vsf=AAAAAFpUAgECBwAACnAGAW5FUF4ZXUdDUUhEX1hRUC5ldQ--;vst=AAAAAAAAAAAAAAAAAAAAAABCXkYAQkdeVEJDQVtSVBRQRTYw;did=5fc.669;nat=yes> > Contact: <sip:[email protected]> > > > > 2023/01/26 09:48:31.260901 17.17.17.211:5060 -> 77.1.1.1:20125 > ACK sip:[email protected]:20125 SIP/2.0 > Via: SIP/2.0/UDP > 17.17.17.211;branch=z9hG4bK7b5d.e8fb34e79623843d516ae77257014e2d.0 > Via: SIP/2.0/UDP > 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.48f49235d45a0f6f9efdad9d6d8224bd.0 > From: <sip:[email protected]:5060>;tag=gK0e80b4b9 > To: "301234567890" <sip:[email protected]:20125>;tag=07ece97c > Call-ID: 1q5nE37RGZ8a8ChI6rqShw.. > CSeq: 29227 ACK > Max-Forwards: 68 > Content-Length: 0 > Contact: <sip:[email protected]> > > Any help will be much appreciated. > > Thank you! > Regards, > Angelo >
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