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Roadmap to NGN Documents Issue 2, August 2008
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Services Agent (SA), the Access Gateway (AG), and the Signaling Gateway (SG).
This Framework GR is not intended to provide complete requirements for VoP
Network Services. Instead, it will serve as the foundation for comprehensive service
requirements in other GRs that are to be developed in the future. The specific
services that are covered in these future GRs will depend on the direction of the
funding clients for these GRs. The Framework GR covers the following types of
services, which are provided to VoP Network end-users who are connected to the
VoP Network at the Access Gateway: Residential and business services for users
connected to the AG by conventional PSTN line-side interfaces. These services are
drawn from such conventional service categories as Plain Old Telephone Service
(POTS) services, Basic Business Group (BBG) or Centrex Services, Custom Local
Calling Area Signaling Services (CLASS), and Intelligent Network (IN) Services;
Residential and business services for users connected to the AG by ISDN Basic Rate
Interfaces (BRIs); Private Branch Exchange (PBX) Services for users connected to
the AG by conventional PSTN trunk-side interfaces, and PBX Services for users
connected to the AG by ISDN Primary Rate Interfaces (PRI). This document covers
both the pre-IN and IN Transaction Capabilities Application Part (TCAP) protocols
for VoP Network Services. Pre-IN TCAP is used with Toll-Free Service and Calling
Name Identification Services in PSTNs today. IN TCAP is used with Local Number
Portability service in PSTNs today. Both pre-IN TCAP and IN TCAP are included in
this Framework GR to support VoP Network interworking with existing PSTN
implementations of these services. To facilitate rapid introduction of new network
services in the VoP network environment, this Framework GR also describes a
framework for an Application Programming Interface (API) to allow for third party
service creation. The API connects an external Service Definition Environment
(SDE) to the Call Connection Agent and Services Agent in the VoP Network, and
allows a third party to create new VoP Network Services for end-users on the VoP
Network.
Contents
1. Introduction
2. VoP Network Services Philosophy
2.1 Functional Elements and Their Roles
2.2 Interfaces and Protocols - Overview
3. End-User Interfaces and Classes of Services Supported in VoP Networks
3.1 End-User Interfaces
3.2 Classes of Services
4. Individual Services Supported in VoP Networks
4.1 Generally Available Services
4.2 Residential and Small Business Services for Analog Lines
4.3 Large Business Services for Analog Lines
4.4 Residential and Small Business Services for ISDN BRIs
4.5 Large Business Services for ISDN BRIs
4.6 Services for Conventional DS1 Trunks