A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : An Extension to the Session Initiation Protocol (SIP) for Request History Information
Author(s) : M. Barnes, F. Audet
Filename : draft-barnes-sip-rfc4244bis-00.txt
Pages : 49
Date : 2009-03-04
This document defines a standard mechanism for capturing the history
information associated with a Session Initiation Protocol (SIP)
request. This capability enables many enhanced services by providing
the information as to how and why a call arrives at a specific
application or user. This document defines a new optional SIP
header, History-Info, for capturing the history information in
requests.
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