If you are sending INVITE with "to and from" tag that mean it's a re-INVITE for the existing dialog ( totag fromtag and CallId ). But you have not created any dialog yet. UAS Server will send 481 response as no call exist with that. Uttam
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dale R. Worley Sent: Friday, May 26, 2006 9:32 AM To: Sip-Implementors Subject: Re: [Sip-implementors] INVITE in SUBSCRIBE SESSION On Fri, 2006-05-26 at 14:23 +0100, Munish Bansal wrote: > Hi All > > Is the following scenario possible? > > 1. Create a session using SUBSCRIBE. > 2. Send INVITE using the same Call-ID, from tag/To tag as is in > SUBSCRIBE session. It might be theoretically possible. The current terminology would be "to create an INVITE dialog usage within a dialog that was created by a SUBSCRIBE". But I expect few or no UAs would handle it successfully. Generaly, INVITEs can only be used to create dialogs or to modify the media session within an INVITE-created dialog. Dale --- interop.pingtel.com -- the public SIP phone interoperability test server _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
