Re-INVITE and Target-refresh Request Handling in the Session Initiation Protocol (SIP)

Document Type Replaced Internet-Draft (individual)
Last updated 2010-01-13 (latest revision 2009-10-26)
Replaces draft-camarillo-sipping-reinvite
Replaced by draft-ietf-sipcore-reinvite
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Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-sipcore-reinvite
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In this document, we clarify the handling of re-INVITEs in SIP. We clarify in which situations a UAS (User Agent Server) should generate a success response and in which situations a UAS should generate an error response to a re-INVITE. Additionally, we clarify issues related to target-refresh requests.


Gonzalo Camarillo (
Christer Holmberg (
Gao yang (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)