Indication of support for keep-alive

Document Type Replaced Internet-Draft (individual)
Last updated 2009-05-12 (latest revision 2009-04-16)
Replaces draft-holmberg-sip-keep
Replaced by draft-ietf-sipcore-keep
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Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-sipcore-keep
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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.)