I agree with Paul. In addition, the last paragraph of rfc3261 section 20 provides more detail concerning when the optional angle brackets become mandatory.
> -----Original Message----- > From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip- > implementors-boun...@lists.cs.columbia.edu] On Behalf Of Paul Kyzivat > Sent: Friday, September 04, 2009 2:05 PM > To: Alex Balashov > Cc: sip-implementors@lists.cs.columbia.edu > Subject: Re: [Sip-implementors] Carets encasing URIs. > > > > Alex Balashov wrote: > > I cannot easily tell from 3261 whether references to URIs other than the > > Request URI must be encased in "<" and ">" or not, probably because I do > > not know how to read BNF. > > If you are involved in SIP, or almost any IETF protocol, then I strongly > suggest that you *learn* to read ABNF. RFC 5234 should tell you all you > need to know. > > Thanks, > Paul > > > In other words, in the absence of a display name (which would be a > > quoted string), is this valid? > > > > Contact: sip:xx.xxx.xx.xxx:5060 > > > > What about this? > > > > To: sip:xx.xxx.xxx.xxx:5060 > > > > I was under the impression it was not, but this is mainly because I've > > never seen any implementation NOT use that notation regardless of > > whether it is necessary. I do not know if the rules here are more or > > less strict than RFC 2822. > > > > Thanks! _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
