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
>
>
>
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