Extending the Session Initiation Protocol Reason Header for Preemption Events
RFC 4411, “Extending the Session Initiation Protocol Reason Header for Preemption Events”, is a Proposed Standard document published in February 2006 by J. Polk. The canonical text is published by the RFC Editor.
Abstract
This document proposes an IANA Registration extension to the Session Initiation Protocol (SIP) Reason Header to be included in a BYE Method Request as a result of a session preemption event, either at a user agent (UA), or somewhere in the network involving a reservation-based protocol such as the Resource ReSerVation Protocol (RSVP) or Next Steps in Signaling (NSIS). This document does not attempt to address routers failing in the packet path; instead, it addresses a deliberate tear down of a flow between UAs, and informs the terminated UA(s) with an indication of what occurred. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4411 is hosted at rfc-editor.org. Available in TXT,HTML.
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