One of the scenarios where "it certainly can be useful for X1 to call X2" is where you want to move select media streams in a call or an whole established call between two entities (devices) using "AOR X"
-- Srini Krishnamoorthy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Kyzivat Sent: Wednesday, March 05, 2008 8:57 AM To: narasingha pattnaik Cc: [email protected] Subject: Re: [Sip-implementors] IMS Subscriber makes a call to himself If phones X1 and X2 are both registered with AOR X it certainly can be useful for X1 to call X. There is nothing about sip signaling that should in any way prevent this from working. It is of course possible in such a case for a UAC to receive an INVITE from itself. In most situations it would probably be wise for it to refuse such an incoming INVITE. It is easy to recognize this case by the Call-ID if there aren't B2BUAs in the path. If there are, then it could be difficult. (Otherwise, you may find that you are waiting for ringback and get a call waiting indication. When you answer it you find that the other party is on hold. You then keep switching back and forth, and always the other party is on hold. :) Paul narasingha pattnaik wrote: > Hi ALL, > > Can anyone please let me know is there any scenario wherein it will be > required that Subscriber makes a call to himself? > > is there any RFC/draft saying something regarding this? > > IF such scenario happen what should be the correct behavior of proxy? > > Your help is appreciated. > > Thanks in advance for your help > > > > -- > _______________________________________________ > 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 _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
