Dear Members. We have two peering networks connected via SBC. Let me explain the issue.
The call is dropped by the peering end (Side-B) using the 200OK for the BYE. but still the Side A continue sending the CANCEL messages. I want to know in which circumstances the side A keeps sending the CANCEL messages. and which side is complaint to RFC standards,I have been to the RFC3261 and feel that both sides are complaint to the RFC. I have attached the wire shark traces in text format. RFC 3261 section 15 is used as reference. Kindly advise. -- Br, Imran Saleem +966-533-414475
INVITE sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 CSeq: 1 INVITE Contact: <sip:1.1.1.1:5060;transport=udp> MIME-Version: 1.03 Supported: timer,100rel Max-Forwards: 69 P-Asserted-Identity: <sip:0987654321@1.1.1.1;user=phone> Session-Expires: 1800 Allow: ACK,INFO,BYE,CANCEL,INVITE,OPTIONS,NOTIFY,PRACK,UPDATE Content-Type: application/sdp Content-Length: 333 v=0 o= 575320141103134747 1813774454 IN IP4 1.1.1.1 s=SIP c=IN IP4 1.1.1.1 t=0 0 m=audio 40236 RTP/AVP 8 18 100 13 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=yes a=rtpmap:100 telephone-event/8000 a=fmtp:100 0-15 a=rtpmap:13 CN/8000 a=sqn: 0 a=cdsc: 1 image udptl t38 a=sendrecv a=ptime:20 SIP/2.0 100 Trying Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> CSeq: 1 INVITE Content-Length: 0 SIP/2.0 100 Trying Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> CSeq: 1 INVITE Content-Length: 0 SIP/2.0 183 Session Progress Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 1 INVITE Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,UPDATE Contact: <sip:2.2.2.2:9130> Require: 100rel RSeq: 1 Content-Length: 198 Content-Type: application/sdp v=0 o=- 1077081774 1077081775 IN IP4 2.2.2.3 s=SBC call c=IN IP4 2.2.2.3 t=0 0 m=audio 46814 RTP/AVP 8 100 a=rtpmap:8 PCMA/8000 a=rtpmap:100 telephone-event/8000 a=ptime:20 SIP/2.0 183 Session Progress Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 1 INVITE Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,UPDATE Contact: <sip:2.2.2.2:9130> Require: 100rel RSeq: 1 Content-Length: 198 Content-Type: application/sdp v=0 o=- 1077081774 1077081775 IN IP4 2.2.2.3 s=SBC call c=IN IP4 2.2.2.3 t=0 0 m=audio 46814 RTP/AVP 8 100 a=rtpmap:8 PCMA/8000 a=rtpmap:100 telephone-event/8000 a=ptime:20 PRACK sip:2.2.2.2:9130 SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK2aaklc107ot1hrgrk2o1.1 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 CSeq: 2 PRACK Supported: timer Max-Forwards: 69 RAck: 1 1 INVITE Content-Length: 0 Route: <sip:2.2.2.2:9130;transport=udp;lr> SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK2aaklc107ot1hrgrk2o1.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 2 PRACK Content-Length: 0 SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK2aaklc107ot1hrgrk2o1.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 2 PRACK Content-Length: 0 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 1 INVITE Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,UPDATE Contact: <sip:2.2.2.2:9130> Require: 100rel P-Early-Media: sendrecv RSeq: 2 Content-Length: 0 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 1 INVITE Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,UPDATE Contact: <sip:2.2.2.2:9130> Require: 100rel P-Early-Media: sendrecv RSeq: 2 Content-Length: 0 PRACK sip:2.2.2.2:9130 SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKsq11fd10c830vt499221.1 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 CSeq: 3 PRACK Supported: timer Max-Forwards: 69 RAck: 2 1 INVITE Content-Length: 0 Route: <sip:2.2.2.2:9130;transport=udp;lr> SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKsq11fd10c830vt499221.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 3 PRACK Content-Length: 0 SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKsq11fd10c830vt499221.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 3 PRACK Content-Length: 0 BYE sip:2.2.2.2:9130 SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKqut31h00507g9l8hu341.1 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 CSeq: 4 BYE Supported: timer Max-Forwards: 69 Reason: Q.850 ;cause=16 ;text="Normal call clearing" Content-Length: 0 Route: <sip:2.2.2.2:9130;transport=udp;lr> SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKqut31h00507g9l8hu341.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 4 BYE Content-Length: 0 SIP/2.0 200 OK Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bKqut31h00507g9l8hu341.1 Record-Route: <sip:2.2.2.2:9130;transport=udp;lr> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone>;tag=JZeHBccHelleHYYH CSeq: 4 BYE Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0 CANCEL sip:1234567890@2.2.2.2:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK59nh4500b8pgfqsrk541.1 CSeq: 1 CANCEL From: <sip:0987654321@1.1.1.1;user=phone>;tag=SDbd1d401-547EEA53-970608D-0AD01111 To: <sip:1234567890@2.2.2.2:5060;user=phone> Call-ID: SDbd1d401-d2c800aec080151ba30cdb92b5a979a3-v300g00 Max-Forwards: 69 Content-Length: 0
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