Hi, The ordering of SIP URI parameters is not significant.
RFC 3261 section 20.20 (and indirectly section 20.39) mentions URI matching which is further discussed within section 19.1.4. RFC 3261 section 19.1.4: "The ordering of parameters and header fields is not significant in comparing SIP and SIPS URIs." > -----Original Message----- > From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip- > implementors-boun...@lists.cs.columbia.edu] On Behalf Of Gaurav Khare > Sent: Thursday, July 28, 2016 8:02 AM > To: Sip-implementors (sip-implementors@lists.cs.columbia.edu) > Subject: [Sip-implementors] Order of parameters in FROM header > > Hi, > > According to the Section 8.2.6.2 of RFC 3261, ..... > The From field of the response MUST equal the From header field of > the request. The Call-ID header field of the response MUST equal the > Call-ID header field of the request. The CSeq header field of the > response MUST equal the CSeq field of the request. The Via header > field values in the response MUST equal the Via header field values > in the request and MUST maintain the same ordering. > ..... > > Will the ordering of parameters matter to UAC? Example see below > > Are the below two Headers same or will UAC reject the response? > INVITE Header====>From: <sip:9132264003@144.230.114.229:51000;isup- > oli=61;user=phone>;tag=127.0.0.1alUtKGp-05957+1+60760003+7615abee > 180Ringing ====>From: > <sip:9132264003@144.230.114.229:51000;user=phone;isup- > oli=61>;tag=127.0.0.1alUtKGp-05957+1+60760003+7615abee > > > Thanks, > Gaurav Khare _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
