> what do u mean by > > "Because of the semicolon, you should be using the name-addr > syntax instead of addr-spec syntax." > > How does Refer-To header should look for my call flow. > > Refer-To: <sip:use...@abc.com;method=BYE>
Yes; that reflects my name-addr comment. Unfortunately, text similar to the following RFC 3261 section 20 snippet did not make it into many of the RFCs (such as RFC 3515) which defined headers containing "name-addr / addr-spec". Without the brackets (or text to clarify how to decode), the receiver does not necessarily know if "method" was sent as a URI parameter or header parameter. " The Contact, From, and To header fields contain a URI. If the URI contains a comma, question mark or semicolon, the URI MUST be enclosed in angle brackets (< and >). Any URI parameters are contained within these brackets. If the URI is not enclosed in angle brackets, any semicolon-delimited parameters are header-parameters, not URI parameters." RFC 3325 errata 3744 discusses the issue (although from a comma perspective). The issue for other headers is also mentioned within the following link. http://www.ietf.org/mail-archive/web/sipcore/current/msg05731.html _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
