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ROADMAP-TO-NGN-1
Roadmap to NGN Documents Issue 2, August 2008
Your Roadmap to NGN Documents
3–6
2.2 Functional Elements
2.3 Interfaces and Protocols
2.4 Assumptions
2.5 High-level Call Flows
3. TGW Functional Architecture and High-Level Requirements
3.1 TGW Functional Architecture
3.2 Connection Control and Resource Management
3.3 Routing Analysis
3.4 Modularity, Scalability and Extensibility
4. Interface Requirements
4.1 Bearer Transport Interface
4.2 Gateway Connection Control Transport
4.3 Gateway Control Interface
4.4 Trunk Interface
5. Connection Control Procedures
5.1 Non-Call-Related Procedures
5.2 Normal Call-Related Procedures
5.3 Core Network Connection Procedures
6. Media Processing
6.1 Media Detection
6.2 Continuity Tone Detection, Generation, and Loop-back
6.3 Echo Cancellation
6.4 Comfort Noise Insertion
6.5 Encoding and Transcoding Functions
6.6 Silence Detection/Suppression
6.7 Packetization Functions
6.8 Receive Path Delay
7. Management and Operations Requirements
7.1 Overview of NGN VOP Network Management Strategy
7.2 Configuration Management Requirements
7.3 Fault Management Requirements
7.4 Performance Management Requirements
GR-3055-CORE, Voice over Packet: NGN Access Gateway Generic
Requirements
This document describes the architecture, interfaces, and functionality of the
Access Gateway (AGW) component of a Voice over Packet (VoP) network. The
Access Gateway is an edge vehicle component of the VOP architecture that enables
existing Public Switched Telephone Network (PSTN) line-side devices such as
voice-grade analog station equipment, Integrated Digital Services Network (ISDN)
Basic and Primary Rate connecting equipment, Private Branch Exchange (PBX)