Re: [Sip-implementors] Information Required

2009-06-25 Thread Tomasz Zieleniewski
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

Re: [Sip-implementors] Information Required

2009-06-23 Thread Paul Kyzivat
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.

[Sip-implementors] Information Required

2009-06-23 Thread Siddhartha Singh
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