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RFC 5876
Title: Updates to Asserted Identity in
the Session Initiation Protocol (SIP)
Author: J. Elwell
Status: Informational
Stream: IETF
Date: April 2010
Mailbox: john.elwell@siemens-enterprise.com
Pages: 11
Characters: 25860
Updates: RFC3325
I-D Tag: draft-ietf-sipping-update-pai-09.txt
URL: http://www.rfc-editor.org/rfc/rfc5876.txt
The Session Initiation Protocol (SIP) has a mechanism for conveying
the identity of the originator of a request by means of the
P-Asserted-Identity and P-Preferred-Identity header fields. These
header fields are specified for use in requests using a number of SIP
methods, in particular the INVITE method. However, RFC 3325 does not
specify the insertion of the P-Asserted-Identity header field by a
trusted User Agent Client (UAC), does not specify the use of
P-Asserted-Identity and P-Preferred-Identity header fields with
certain SIP methods such as UPDATE, REGISTER, MESSAGE, and PUBLISH,
and does not specify how to handle an unexpected number of URIs or
unexpected URI schemes in these header fields. This document extends
RFC 3325 to cover these situations. This document is not an Internet
Standards Track specification; it is published for informational
purposes.
This document is a product of the Session Initiation Proposal Investigation Working Group of the IETF.
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