Re: francois' comments and why RFC4474 not used in the field
Hans Erik van Elburg <[email protected]>
| Newsgroups | gmane.ietf.sip |
|---|---|
| Message-ID | <[email protected]> |
This litmus test seems to mixup presentation with Identity. All identity presentation services I know of are based on signaled identity. Of course a more advanced identity presentation service can be devised that also incorporates media identity. But this can become quite complicated, imagine 1 session containing multiple media streams coming from different entities, what do I present? Or will this not be allowed anymore? The first thing I would be interested in is who is trying to setup a session with me, and if I trust that someone. If I have more stringent requirements also on the media integrity then I need something additional. /Hans Erik van Elburg On Tue, Mar 31, 2009 at 4:12 AM, Jonathan Rosenberg <[email protected]>wrote: > inline: > > Jiri Kuthan wrote: > > > From an end user perspective, I would assert that the most important >>> thing is probably the media. If the callerID says, "this is bob", what is >>> important to the user, is that when I pick up the phone and start talking, >>> it will be Bob who hears me, and Bob that I hear. >>> >>> Consider this litmus test: >>> >>> If the signaling actually came from Mary (perhaps as a third party), but >>> the media goes/comes to/from Bob, who should appear on the caller ID? I say >>> - Bob. >>> >> >> There is a timing aspect in favor of placing identity in signaling -- >> I would like to know whose call is ringing before I answer (if I do). >> > > You can still have that. Just don't ring the phone until early media has > been exchanged and verified. Indeed if you were doing an ICE-style thing per > Dan's draft, you'd get that for free. > > -Jonathan R. > > > > -- > Jonathan D. Rosenberg, Ph.D. 111 Wood Avenue South > Cisco Fellow Iselin, NJ 08830 > Cisco, Voice Technology Group > [email protected] > http://www.jdrosen.net PHONE: (408) 902-3084 > http://www.cisco.com > _______________________________________________ > 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