RFC 8119: SIP "cause" URI Parameter for Service Number Translation
In plain English — editorial summary, not part of the RFC
RFC 4458 (regarding SIP URIs for applications) defines a "cause" URI parameter, which may appear in the Request-URI of a SIP request, that is used to indicate a reason why the request arrived to the User Agent Server (UAS) receiving the message. This document updates RFC 4458 by creating a new predefined value for the "cause" URI parameter to cover service number translation for cases of retargeting due to specific service action leading to the translation of a called service access number. This document also provides guidance, which was missing in RFC 4458, for using the "cause" URI parameter within the History-Info header field, since this use is mandatory in some IP networks' implementations.
Document record
- Document ID
- RFC8119
- Published
- March 2017
- Authors
- M. Mohali; M. Barnes
- Status
- INFORMATIONAL
- Stream
- IETF
- Area
- —
- Pages
- 12
- Also known as
- —
- Updates:
- RFC 4458
Topics
Also filed under
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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