Please refer to Table 3 in RFC 3261:- Header field where proxy ACK BYE CAN INV OPT REG ___________________________________________________________________ Via R amr m m m m m m Via rc dr m m m m m m
m indicates mandatory. Regards, Gaurav > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:sip-implementors- > [EMAIL PROTECTED] On Behalf Of Rami Eitan > Sent: Thursday, May 17, 2007 8:18 PM > 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
