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An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
RFC 3581

Revision differences

Document history

Date By Action
2026-05-20
(System) Changed metadata: changed keywords to '['SIP', 'Session Initiation Protocol', 'Symmetric Response Routing', 'report client server']' from '[]'
2026-05-20
(System) Metadata update from RFC Editor
2026-05-20
(System) Changed author "H. Schulzrinne": changed name from "Henning Schulzrinne" to "H. Schulzrinne", cleared country (was "US"), changed order from "0" to "2"
2026-05-20
(System) Changed author "J. Rosenberg": changed name from "Jonathan Rosenberg" to "J. Rosenberg", cleared country (was "US")
2026-05-20
(System) Metadata update from RFC Editor
2025-04-03
(System) Received changes through RFC Editor sync (removed Errata tag (all errata rejected))
2025-03-28
(System) Received changes through RFC Editor sync (added Errata tag)
2015-10-14
(System) Notify list changed from ,  to
2013-02-23
(System) Posted related IPR disclosure: SSH Communications Security Corporation's Statement about IPR related to RFC 3581
2003-08-27
(System) Last call text was added
2003-08-27
Natalia Syracuse State Changes to RFC Published from RFC Ed Queue by Natalia Syracuse
2003-08-27
Natalia Syracuse published as RFC 3581
2003-08-26
(System) RFC published