Paul Kyzivat <pkyzi...@alum.mit.edu> writes: > On 10/6/17 1:04 PM, Abhishek Jain wrote: >> 1. Under what senarios or conditions, Network would initiate deregistration >> to a UE ? > > The only reason that is covered by ietf sip standards is expiration of > the registration without renewal. Other reasons would be based on > policy. For instance, if the account for the AoR has beed deleted.
Thinking about it, I don't think that there's a general way for the network to signal to the UA (UE) that it has been prematurely deregistered, that is, deregistered before the expiration of a previously granted registration. Of course, once the proxy/registrar isn't willing to route calls to the UA, it *is* deregistered, and of course, it can refuse to accept calls originating from the UA. Dale _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
