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.
Thanks,
Paul
Siddhartha Singh wrote:
> 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.
> 3.one on public identity is having active session at same time one of public
> identity sends
> registration message with expire header set to 0.
> How should this be handled, should existing session get terminated or there
> should be some error response.
> Please help
>
>
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