Name: draft-dcsgroup-sipping-arch-01
Title: Architectural Considerations for Providing Carrier Class Telephony Services Utilizing Session Initiation Protocol SIP-based Distributed Call Control Mechanisms
State: Pending
Authors: Warren Marshall, Matt Osman, Flemming Andreasen, David Evans
Group: Individual Submissions (none)
Date: 2003-01-16
This document provides an overview of a SIP-based Distributed Call
Signaling (DCS) architecture to support carrier class packet-based voice,
video, and other real time multimedia services. Companion documents address
a specific set of SIP 2.0 protocol extensions and usage rules that are
necessary to implement the DCS architecture in an interoperable fashion.
The DCS architecture takes advantage of endpoint intelligence in supporting
telephony services without sacrificing the network's ability to provide
value through mechanisms such as resource management, lookup of directory
information and translation databases, routing services, security, and
privacy enforcement. At the same time, the architecture provides
flexibility to allow evolution in the services that may be provided by
endpoints and the network. DCS also takes into account the need to manage
access to network resources and account for resource usage. The SIP usage
rules defined in the accompanying IDs specifically address the coordination
between Distributed Call Signaling and dynamic quality of service control
mechanisms for managing resources over the access network. In addition, the
DCS architecture defines the interaction needed between network provided
call controllers, known as a 'DCS- proxy' for supporting these services.
[sh-index] Back to list of manuals
|
| |
