A BYE ~30s after the ACK usually means the ACK was not accepted or associated with the call. This is usually due to some problem with the ACK. The ACK responses must be built according to specific requirements based on the INVITE and 200 OK values, so it is not possible to say for sure whether there is anything wrong with the ACK with only the ACK and BYE.
Ben Newlin On 4/29/20, 4:14 AM, "Users on behalf of Santi Anton" <users-boun...@lists.opensips.org on behalf of santi.an...@quarea.com> wrote: Hello, If it helps, these are the ACK sent to MSTeams and BYE received after 20 seconds. sbc.xxxxxxxx.com:5067 Opensips TLS interface 195.xx.xx.xx:5068 Opensips UDP interface 80.xx.xx.xx:5060 Asterisk ACK sip:sip.pstnhub.microsoft.com;x-i=0c135a71-ddec-454c-a506-91079cb038d7;x-c=385a4453fc885c0bb6276a40d7796d3a/s/1/e1c45d052842415e9c0b3b0b04e32791 SIP/2.0 Via: SIP/2.0/TLS 195.xx.xx.xx:5067;branch=z9hG4bK2f83.ee24a46.2 Via: SIP/2.0/UDP 80.xx.xx.xx:5060;received=80.xx.xx.xx;branch=z9hG4bK0a1d079a;rport=5060 Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr> Max-Forwards: 69 From: <sip:935441...@80.xx.xx.xx>;tag=as7659f57d To: <sip:5...@sbc.xxxxxxxxxx.com:5068>;tag=50fe42a7fdb64fe583c1089a0b47f44a Contact: <sip:935441...@80.xx.xx.xx:5060> Call-ID: 433371746cb44b7d76fdc42013bf9...@80.xx.xx.xx:5060:5060 CSeq: 102 ACK User-Agent: FPBX-12.0.76.6(11.20.0) Content-Length: 0 BYE sip:935441...@80.xx.xx.xx:5060 SIP/2.0 FROM: <sip:5...@sbc.xxxxxxxxxx.com:5068>;tag=50fe42a7fdb64fe583c1089a0b47f44a TO: <sip:935441...@80.xx.xx.xx>;tag=as7659f57d CSEQ: 3 BYE CALL-ID: 433371746cb44b7d76fdc42013bf9...@80.xx.xx.xx:5060 MAX-FORWARDS: 69 VIA: SIP/2.0/TLS 52.114.75.24:5061;branch=z9hG4bKf36698cf REASON: Q.850;cause=18;text="0c135a71-ddec-454c-a506-91079cb038d7;*Call Controller timed out while waiting for acknowledgement.*" ROUTE: <sip:sbc.xxxxxxxxxx.com.com:5067;transport=tls;lr;did=12a.a46808d1;r2=on>,<sip:195.xx.xx.xx:5060;lr;did=12a.a46808d1;r2=on> CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=0c135a71-ddec-454c-a506 91079cb038d7;x-c=385a4453fc885c0bb6276a40d7796d3a/s/1/e1c45d052842415e9c0b3b0b04e32791> CONTENT-LENGTH: 0 USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.4.20.2 i.EUWE.6 ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY Best Regards, -- Sent from: http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html _______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users _______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users