Hi Brett Thanks for the answer. I missed the <> while pasting in the mail. The Contact received is:
Contact: <sip:917163166;phone-context=+34@10.31.255.134:5070;endpoint=192.168.126.12;transport=udp> Should the ReINVITE be sent to 10.31.255.134:5070 in this case? Regards Tarun Gupta -----Original Message----- From: Brett Tate [mailto:br...@broadsoft.com] Sent: Monday, February 10, 2014 4:17 PM To: Tarun2 Gupta; sip-implementors@lists.cs.columbia.edu Subject: RE: [Sip-implementors] Query on Contact in INVITE > Is the following a valid example of a Contact in INVITE: No; the missing brackets cause the parameters to decode as header parameters instead of being part of the sip-uri. This causes the '@' to be an invalid header parameter character. Similarly, "917163166" wouldn't decode correctly as a "host". I am assume that some decodes will accommodate the invalid character usage; however the sip-uri won't decode as the sender likely intended. generic-param = token [ EQUAL gen-value ] gen-value = token / host / quoted-string host = hostname / IPv4address / IPv6reference hostname = *( domainlabel "." ) toplabel [ "." ] domainlabel = alphanum / alphanum *( alphanum / "-" ) alphanum toplabel = ALPHA / ALPHA *( alphanum / "-" ) alphanum > Contact: sip:917163166;phone-context=+34@10.31.255.134:5070; > endpoint=192.168.126.12;transport=udp <snip> > Can you give me any normative references in support of the above ABNF. The following RFC 3261 section 20 snippet indicates why the sender should enclose within brackets. "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." -- This email is intended solely for the person or entity to which it is addressed and may contain confidential and/or privileged information. If you are not the intended recipient and have received this email in error, please notify BroadSoft, Inc. immediately by replying to this message, and destroy all copies of this message, along with any attachment, prior to reading, distributing or copying it. =============================================================================== Please refer to http://www.aricent.com/legal/email_disclaimer.html for important disclosures regarding this electronic communication. =============================================================================== _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
