Hello, I need to cancel an INVITE that was just sent, and am trying the method indicated in RFC 3261. Below is a small log of the SIP messages sent/received.
<send INVITE> INVITE sip:[EMAIL PROTECTED] SIP/2.0 Call-ID: [EMAIL PROTECTED] CSeq: 590812 INVITE From: <sip:[EMAIL PROTECTED]>;tag=1508783231-1592972684 To: "1001" <sip:[EMAIL PROTECTED]> Via: SIP/2.0/UDP 192.168.0.16:1099 Max-Forwards: 70 Contact: "gernot" <sip:[EMAIL PROTECTED]:1099> User-Agent: C12 Phone Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,UPDATE,NOTIFY Content-Type: application/sdp Content-Length: 159 // sdp body <receive TRYING> SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.0.16:1099;branch=z9hG4bK2a812a1942f6c5e7081b1c7505d45b8c From: <sip:[EMAIL PROTECTED]>;tag=1508783231-1592972684 To: "1001" <sip:[EMAIL PROTECTED]> Call-ID: [EMAIL PROTECTED] CSeq: 590812 INVITE Content-Length: 0 <receive RINGING> SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.0.16:1099;branch=z9hG4bK2a812a1942f6c5e7081b1c7505d45b8c From: <sip:[EMAIL PROTECTED]>;tag=1508783231-1592972684 To: "1001" <sip:[EMAIL PROTECTED]>;tag=1229238695-1093914397502 Call-ID: [EMAIL PROTECTED] CSeq: 590812 INVITE Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,UPDATE,NOTIFY Supported: 100rel Contact: <sip:192.168.0.170:5060> Remote-Party-ID: "Jill Tester"<sip:[EMAIL PROTECTED];user=phone>;screen=yes;party=called;privacy=off;id-type=subscriber Content-Length: 0 <send CANCEL> CANCEL sip:[EMAIL PROTECTED] SIP/2.0 Call-ID: [EMAIL PROTECTED] CSeq: 590812 CANCEL From: <sip:[EMAIL PROTECTED]>;tag=1508783231-1592972684 To: "1001" <sip:[EMAIL PROTECTED]> Via: SIP/2.0/UDP 192.168.0.16:1099 Max-Forwards: 70 User-Agent: C12 Phone Contact: "gernot" <sip:[EMAIL PROTECTED]:1099> Content-Length: 0 <receive OK for CANCEL> SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.0.16:1099;branch=z9hG4bK4f4ef2cc44a8b287fda3dd08df6fdebd From: <sip:[EMAIL PROTECTED]>;tag=1508783231-1592972684 To: "1001" <sip:[EMAIL PROTECTED]> Call-ID: [EMAIL PROTECTED] CSeq: 590812 CANCEL Content-Length: 0 However, after this, i do not receive a 487 Request Terminated response, and the remote user's phone proceeds to ring. Could anyone kindly tell me where i'm going wrong. Thanks in advance. Regards, Sam _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
