>From what I understand, in the case of presence the registrar can act as a UAS for SUBSCRIBE requests. This is because it's really the authority on who is currently "logged in". I think what went unsaid in my previous e-mail was that I am assuming the proxy and registrar are the same server.
On Fri, 2003-07-11 at 11:31, Paul Kyzivat wrote: > I don't think I understand your question. > > If the subscribe is sent to a something acting as a proxy, the proxy > should not respond with a 2xx. If it responds with a 2xx it is acting as > a UAS. This must establish a dialog. > > This seems to have nothing to do with a registrar or registrations. > > I have a feeling that you have something else in mind, but you need to > explain it more fully. > > Paul > > David Stuart wrote: > > Hi All, > > > > I have a question regarding SUBSCRIBE and NOTIFY requests with a proxy > > in between, relating mostly to Dialogs. Here is the situation: > > > > 1) One (registered) UA > > 2) One proxy/registrar > > > > The UA registers to the proxy and immediately sends a SUBSCRIBE for a > > resource (for argument's sake let's use presence as an example since it > > is the most well known). > > > > The first subscribe request is outside of a dialog, and I believe is > > considered to be a dialog-creating request. As such, there is a CallId > > and the From: "tag" is set (but there is no "To:" "tag" yet). > > > > The proxy responds with a 202 Pending, and then sends a NOTIFY request > > with subscription-state pending. > > > > My question is, should this NOTIFY request be inside or outside of the > > dialog (I am assuming inside, but want to check).. That is to say, are > > the callId and both the From "tag" and To "tag" set at this point? > > > -- David Stuart, SIPQuest phone: 254-8886 x234 web: http://www.sipquest.com/ _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
