Session Timers in the Session Initiation Protocol (SIP)
draft-ietf-sipcore-rfc4028bis-00

The information below is for an old version of the document
Document Type Expired Internet-Draft (sipcore WG)
Authors Christer Holmberg  , Steve Donovan  , Jonathan Rosenberg 
Last updated 2019-06-24 (latest revision 2018-12-21)
Replaces draft-holmberg-sipcore-rfc4028bis
Stream IETF
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Stream WG state WG Document
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-ietf-sipcore-rfc4028bis-00.txt

Abstract

This document defines an extension to the Session Initiation Protocol (SIP). This extension allows for a periodic refresh of SIP sessions through a re-INVITE or UPDATE request. The refresh allows both user agents and proxies to determine whether the SIP session is still active. The extension defines two new header fields: Session- Expires, which conveys the lifetime of the session, and Min-SE, which conveys the minimum allowed value for the session timer.

Authors

Christer Holmberg (christer.holmberg@ericsson.com)
Steve Donovan (srd@cisco.com)
Jonathan Rosenberg (jdrosen@cisco.com)

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