See RFC 3261 section 9.2.
From: Arun Arora [mailto:[email protected]] Sent: Tuesday, September 17, 2013 7:51 AM To: Brett Tate Cc: sip-implementors Subject: RE: [Sip-implementors] About Cancel a Dialog So what I understand is if there is a use-case where CANCEL can be sent for other than non-INVITE method, that case should be clearly outlined... may be a sip extension rfc which specifically standardizes such scenario. Otherwise if not explicitely mentioned CANCEL should be ignored in case of non-INVITE requests. If my understanding is correct then it raises a question that what a UAS should send in response of CANCEL for a non-INVITE request even if UAS decides to ignore it? _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
