Reliability of Provisional Responses in Session Initiation Protocol
RFC 3262, “Reliability of Provisional Responses in Session Initiation Protocol”, is a Proposed Standard document published in July 2002 by J. Rosenberg, H. Schulzrinne. It obsoletes RFC 2543. The canonical text is published by the RFC Editor.
Abstract
This document specifies an extension to the Session Initiation Protocol (SIP) providing reliable provisional response messages. This extension uses the option tag 100rel and defines the Provisional Response ACKnowledgement (PRACK) method. [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 3262 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 3261 SIP: Session Initiation Protocol
- RFC 3263 Session Initiation Protocol : Locating SIP Servers
- RFC 3260 New Terminology and Clarifications for Diffserv
- RFC 3264 An Offer/Answer Model with Session Description Protocol
- RFC 3259 A Message Bus for Local Coordination
- RFC 3265 Session Initiation Protocol -Specific Event Notification
- RFC 3258 Distributing Authoritative Name Servers via Shared Unicast Addresses
- RFC 3266 Support for IPv6 in Session Description Protocol