A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : A Session Initiation Protocol (SIP) Media
Feature Tag for MIME Application Sub-Types
Author(s) : J. Rosenberg
Filename : draft-rosenberg-sip-app-media-tag-00.txt
Pages : 8
Date : 2007-5-1
The caller preferences specification for the Session Initiation
Protocol (SIP) allows a caller to express preferences that the call
be routed to a User Agent (UA) with particular capabilities.
Similarly, a specification exists to allow a UA to indicate its
capabilities in a registration. Amongst those capabilities are the
type of media streams the agent supports, described as top-level MIME
types. The 'application' MIME type is used to describe a broad range
of stream types, and provides insufficient granularity as a
capability. This specification allows a UA to indicate which
application sub-types the agent supports.
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