On Tuesday 31 August 2004 10:06, Markus Hofmann wrote: > Hi Sam, > > I think to send a "487 Request Terminated" is a SHOULD and not a MUST.
To clarify a common misunderstanding: SHOULD means you HAVE TO implemented it that way. The only expection is that you have a VERY good reason to do it not that way, and you are aware that you are breaking the interoperation with other parties and you are able to deal with that. Regards Nils Ohlmeier > Greeting > > Markus > > sam n <[EMAIL PROTECTED]> schrieb am 31.08.04 03:42:20: > > 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;privac > >y=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 > > ________________________________________________________________ > Verschicken Sie romantische, coole und witzige Bilder per SMS! > Jetzt neu bei WEB.DE FreeMail: http://freemail.web.de/?mc=021193 > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
