Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier
RFC 4967, “Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier”, is a Proposed Standard document published in July 2007 by B. Rosen. The canonical text is published by the RFC Editor.
Abstract
RFC 3966 explicitly states that 'tel' URIs may not represent a dial string. That leaves no way specify a dial string in a standardized way. Great confusion exists with the SIP URI parameter "user=phone", and specifically, if it can represent a dial string. This memo creates a new value for the user parameter "dialstring", so that one may specify "user=dialstring" to encode a dial string as a 'sip:' or 'sips:' URI. [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 4967 is hosted at rfc-editor.org. Available in TXT,HTML.
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