Registration for Multiple Phone Numbers in the Session Initiation Protocol
RFC 6140, “Registration for Multiple Phone Numbers in the Session Initiation Protocol”, is a Proposed Standard document published in March 2011 by A.B. Roach. It updates RFC 3680. The canonical text is published by the RFC Editor.
Abstract
This document defines a mechanism by which a Session Initiation Protocol (SIP) server acting as a traditional Private Branch Exchange (PBX) can register with a SIP Service Provider (SSP) to receive phone calls for SIP User Agents (UAs). In order to function properly, this mechanism requires that each of the Addresses of Record (AORs) registered in bulk map to a unique set of contacts. This requirement is satisfied by AORs representing phone numbers regardless of the domain, since phone numbers are fully qualified and globally unique. This document therefore focuses on this use case. [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 6140 is hosted at rfc-editor.org. Available in TXT,HTML.
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