IETF RFC 3311
The Session Initiation Protocol (SIP) UPDATE Method
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| Organization: | IETF |
| Publication Date: | 1 September 2002 |
| Status: | active |
| Page Count: | 13 |
scope:
This specification defines the new UPDATE method for the Session Initiation Protocol (SIP). UPDATE allows a client to update parameters of a session (such as the set of media streams and their codecs) but has no impact on the state of a dialog. In that sense, it is like a re-INVITE, but unlike re-INVITE, it can be sent before the initial INVITE has been completed. This makes it very useful for updating session parameters within early dialogs.
Document History
IETF RFC 3311
September 1, 2002
The Session Initiation Protocol (SIP) UPDATE Method
This specification defines the new UPDATE method for the Session Initiation Protocol (SIP). UPDATE allows a client to update parameters of a session (such as the set of media streams and their...