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Indication of support for keep-alive

Document Type Replaced Internet-Draft (individual)
Expired & archived
Author Christer Holmberg
Last updated 2009-05-12 (Latest revision 2009-04-16)
Replaces draft-holmberg-sip-keep
Replaced by RFC 6223
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-sipcore-keep
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This specification defines a new SIP Via header parameter, "keep" which SIP entities can use to indicate support of the NAT keep-alive techniques defined in SIP Outbound, in cases where the Outbound procedures are not supported or cannot be applied.


Christer Holmberg

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