A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Session Initiation Protocol Working Group of the IETF.
Title : Caller Preferences and Callee Capabilities
for the Session Initiation Protocol (SIP)
Author(s) : H. Schulzrinne, J. Rosenberg, P. Kyzivat
Filename : draft-ietf-sip-callerprefs-08.txt
Pages : 58
Date : 2003-3-7
This document describes a set of extensions to the Session Initiation
Protocol (SIP) which allow a caller to express preferences about
request handling in servers. These preferences include the ability to
select which URIs a request gets routed to, and to specify certain
request handling directives in proxies and redirect servers. It does
so by defining four new request headers, Accept-Contact, Reject-
Contact, Require-Contact and Request-Disposition, which specify the
caller's preferences. The extension also defines new parameters for
the Contact header that describe the capabilities and characteristics
of a UA.
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