On Tue, 2008-03-25 at 12:10 +0100, Iñaki Baz Castillo wrote: > El Tuesday 25 March 2008 12:01:30 Iñaki Baz Castillo escribió: > > Hi, about mandatory headers RFC 3261 says: > > > > 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. > > > > > > but it also says: > > > > 3.6. Field definitions > > Field Min number Max number Notes > > to 0 1 > > > > > > So how is it possible? how can "To" header appear at minimun 0 times while > > it's mandatory??? > > Sorry, the second RFC wasn't 3261 but 2822 (Internet Message Format).
2822 is about email - RFC 3261 is the authoritative reference for SIP. -- Scott Lawrence tel:+1.781.229.0533;ext=162 or sip:[EMAIL PROTECTED] sipXecs project coordinator - SIPfoundry http://www.sipfoundry.org/sipXecs CTO, Voice Solutions - Bluesocket Inc. http://www.bluesocket.com/ http://www.pingtel.com/ _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
