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List:       sip-implementors
Subject:    [Sip-implementors]  Questions about dialogs and sessions
From:       "Harsha. R" <harsha.ramanagoudra () gmail ! com>
Date:       2007-12-27 5:21:30
Message-ID: d7e12e280712262109n54bbb643o901dc4df50934994 () mail ! gmail ! com
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Dale,

>But a new offer/answer within that dialog terminates
>the previous session and establishes a new one.

A session-identity is defined in RFC 3261 as follows

"If SDP is used, a session is defined by the concatenation of the SDP
user name, session id, network type, address type, and address
elements in the origin  field"

Since none of the parameters of a session-id are necessarily changed
by a new offer/answer (only the session-version needs to be
incremented in a new offer/answer) Does a new offer/answer necessarily
terminate a session? It only updates a session?

Harsha

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