Via is mandatory: >From RFC3261:
8.1.1 Generating the Request A valid SIP request formulated by a UAC MUST, at a minimum, contain the following header fields: To, From, CSeq, Call-ID, Max-Forwards, and Via; all of these header fields are mandatory in all SIP requests. Regards, Attila -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Rami Eitan Sent: 17 May 2007 15:48 To: Sip-implementors@cs.columbia.edu Subject: [Sip-implementors] Is the VIA header mandatory in all requestmessages Hello, I have a question regarding the VIA header in request messages. I've noticed that the RFC does not mention the VIA header to be mandatory in all requests, yet it seems to be the case in most implementations. My question is does anyone know of or has ever come across a request message without the VIA header in it? Thx Rami _______________________________________________ Sip-implementors mailing list Sip-implementors@cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list Sip-implementors@cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
