I agree with Dean that feature tags and option tags are two separate things.
But, in the sip.extensin feature tag you will actually list option tags :) sip.extension="100rel, info-packages, almighty-199" etc. Regards, Christer -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dean Willis Sent: Monday, November 17, 2008 8:00 AM To: Eric Burger Cc: SIP IETF Subject: Re: [Sip] INFO Discussion On Nov 16, 2008, at 8:23 PM, Eric Burger wrote: > This is what I've gleaned from the list: > > *SIP Option Tags? E.g., sip.extension There seems to be some confusion between media feature tags, as used in RFV 3840/3841, and SIP option tags. Option tags are used in Supported and Require, with a common application being in Supported header fields sent in response to OPTIONS messages. They describe which extensions are supported by the UA. I think we need one for INFO packages, because INFO package negotiation is clearly an extension to base INFO. Feature tags, on the other hand, support selective retargeting in proxies where the potential targets are discovered via REGISTER operations. We may need this too. -- Dean _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
