(NGN) Documents - Telcordia Information SuperStore - Telcordia ...
(NGN) Documents - Telcordia Information SuperStore - Telcordia ...
(NGN) Documents - Telcordia Information SuperStore - Telcordia ...
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ROADMAP-TO-<strong>NGN</strong>-1<br />
Roadmap to <strong>NGN</strong> <strong>Documents</strong> Issue 2, August 2008<br />
Your Roadmap to <strong>NGN</strong> <strong>Documents</strong><br />
3–14<br />
the CCA assists the CGW in establishing voice calls. The generic criteria in this<br />
document state the architecture, interfaces, and functionality of the <strong>NGN</strong> Customer<br />
Gateway. The intent is to help ensure the interoperability of the components within<br />
the <strong>NGN</strong>, with other <strong>NGN</strong>s, and with other networks like the Public Switched<br />
Telephone Network (PSTN), without constraining the implementation choices<br />
available to the manufacturer. The generic requirements describe the physical layer<br />
termination and real-time control functions for interfacing user voice/data devices<br />
to a broadband access network for <strong>NGN</strong> access. The requirements also describe the<br />
CGW interactions with the NMGW and the procedures for transporting user bearer<br />
information, associated signaling and control information, and data over the core<br />
packet network.<br />
Contents<br />
1. Introduction<br />
2. <strong>NGN</strong> Architecture Overview<br />
2.1 High-Level View of a Next Generation Network Architecture<br />
2.2 Functional Elements<br />
2.3 Assumptions, Dependencies, and Constraints<br />
3. Customer Gateway Architecture and High-Level Requirements<br />
3.1 Overview of Customer Gateway Architecture<br />
3.2 Physical Characteristics<br />
3.3 Size, Modularity, Scalability<br />
3.4 Customer Gateway Functions<br />
3.5 Network Access Interface Function<br />
3.6 Signaling Exchange Function<br />
3.7 User <strong>Information</strong> Management Function<br />
4. Protocols for Transport, Connection Management, Device Control and Call<br />
Control<br />
4.1 CGW Transport Requirements<br />
4.2 Connection Management and Device Control Using H.248<br />
5. Call Processing<br />
5.1 R/SB GW-to-R/SB GW Call, Analog Line Case<br />
5.2 Error Cases During Call Establishment<br />
6. Services<br />
6.1 <strong>NGN</strong> Reference Model – Gateways, Networks, and Services<br />
6.2 Defining <strong>NGN</strong> Services and Applications<br />
6.3 Extending PSTN and ISDN Services to <strong>NGN</strong><br />
6.4 Third-Party Service Development for <strong>NGN</strong> Services<br />
6.5 Voice, Data, Video, and Multimedia in an <strong>NGN</strong><br />
6.6 New <strong>NGN</strong> Applications for CGW End Users<br />
7. Customer Gateway Service Activation
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