Session Initiation Protocol URIs for Applications such as Voicemail and Interactive Voice Response
RFC 4458, “Session Initiation Protocol URIs for Applications such as Voicemail and Interactive Voice Response”, is an Informational document published in April 2006 by C. Jennings, F. Audet, J. Elwell. It has since been updated by RFC 8119. The canonical text is published by the RFC Editor.
Abstract
The Session Initiation Protocol (SIP) is often used to initiate connections to applications such as voicemail or interactive voice recognition systems. This specification describes a convention for forming SIP service URIs that request particular services based on redirecting targets from such applications. This memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 4458 is hosted at rfc-editor.org. Available in TXT,HTML.
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