Technical Summary
The MediaCtrl work group in the IETF has proposed an architecture for
controlling media services. The Session Initiation Protocol (SIP) is
used as the signalling protocol which provides many inherent
capabilities for message routing. In addition to such signalling
properties, a need exists for intelligent, application level media
service selection based on non-static signalling properties. This is
especially true when considered in conjunction with deployment
architectures that include 1:M and M:N combinations of Application
Servers and Media Servers. This document introduces a Media Resource
Broker (MRB) entity which manages the availability of Media Servers
and the media resource demands of Application Servers. The document
includes potential deployment options for an MRB and appropriate
interfaces to Application Servers and Media Servers.
Working Group Summary
The working group consensus on this document is solid. Two
WGLCs were held, one after the initial consensus on the
document, and one after extensive review and implementation
experience dictated a number of small improvements to the
protocol and its description.
Document Quality
The protocol described in this document has been implemented
by several major vendors. The description has also been
carefully reviewed by someone not involved in its writing or
implementation.
Personnel
Dale Worley is the document's shepherd.
Robert Sparks is the responsible AD.