Hi,
In standard SIP defined by IETF there is no such requirement to terminate
existing sessions.
Actually a session or any SIP message exchange is independent of the
registration.
Registration is needed to map a public SIP AOR with actual physical location
of the endpoint.
But there no problem for
Linking of registration to authorization of sessions is an IMS concept.
You will need to ask this question in some IMS forum.
As far as IETF is concerned, the presence, coming, or going of
registrations has *no* bearing on extablished sessions, or on the
ability to establish new sessions.
Hi
I need informartion on SIP IMS behaviour in follwoing scenario:
PreCondition:
1. Mutiple public identities linked to one private identities are registered in
IMS.
2. We have implicit registration enabled meaning we do not need to send
individual registration messages for all public identity