Delivery of Request-URI Targets to User Agents

Document Type Expired Internet-Draft (individual)
Last updated 2009-06-09
Replaces draft-rosenberg-sip-target-uri-delivery
Stream (None)
Intended RFC status (None)
Expired & archived
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


When a Session Initiation Protocol (SIP) proxy receives a request targeted at a URI identifying a user or resource it is responsible for, the proxy translates the URI to a configured URI, or to a registered contact URI, of an agent representing that user or resource. In the process, the original URI is removed from the request. Numerous use cases have arisen which require this information to be delivered to the user agent. This document describes these use cases and defines an extension to the History- Info header field which allows it to be used to support those cases.


Jonathan Rosenberg (
Hans van Elburg (
Christer Holmberg (
Francois Audet (

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