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About This Manual

The AG ISDN for Natural Call Control Developer's Manual explains how to develop an ISDN-based telephony application using Natural MicroSystems AG ISDN for Natural Call Control software. This manual concentrates on building applications that interface with the AG ISDN protocol stack at the NMS CT Access API level. For information on building applications that interface at lower layers, see the AG ISDN Messaging API Developer's Reference Manual.
This document is targeted to developers of telephony and voice applications who are using CT Access. This document defines telephony terms where applicable, but assumes that the reader is familiar with basic telephony concepts. It also assumes that the user is familiar with the C programming language.
This manual is organized as follows: For... See.... A brief discussion of ISDN carriers, protocols, and layers, and how the AG ISDN product provides an interface to ISDN services. Also a list of AG ISDN software package components Chapter 1 - Introduction An overview of a typical AG ISDN application: typical program flow, initialization, and event handling Chapter 2 - AG ISDN Programming Model Details on initializing an AG ISDN application: making switch connections, initializing CT Access, accessing D channels Chapter 3 - Initializing an AG ISDN Application A detailed discussion on how to write an AG ISDN call control application Chapter 4 - AG ISDN Call Control A description of the modes available for routing outgoing calls on an ISDN trunk Chapter 5 - AG ISDN B Channel Assignment Documentation of the sample call control applications included in the AG ISDN software package Chapter 6 - Demonstration Programs A list of terms and definitions Appendix A - Glossary A list of AG ISDN parameters Appendix B - ISDN TCP Parameters A list of additional sources of information on ISDN Appendix C - Additional Reading

For...	See....
A brief discussion of ISDN carriers, protocols, and layers, and how the AG ISDN product provides an interface to ISDN services. Also a list of AG ISDN software package components	Chapter 1 - Introduction
An overview of a typical AG ISDN application: typical program flow, initialization, and event handling	Chapter 2 - AG ISDN Programming Model
Details on initializing an AG ISDN application: making switch connections, initializing CT Access, accessing D channels	Chapter 3 - Initializing an AG ISDN Application
A detailed discussion on how to write an AG ISDN call control application	Chapter 4 - AG ISDN Call Control
A description of the modes available for routing outgoing calls on an ISDN trunk	Chapter 5 - AG ISDN B Channel Assignment
Documentation of the sample call control applications included in the AG ISDN software package	Chapter 6 - Demonstration Programs
A list of terms and definitions	Appendix A - Glossary
A list of AG ISDN parameters	Appendix B - ISDN TCP Parameters
A list of additional sources of information on ISDN	Appendix C - Additional Reading

Related Documents

For more information about related NMS products, refer to these manuals:

General


This manual...	Provides...
Getting Started With MVIP Switching	An overview of digital switching, details on MVIP switching.
AG ISDN Messaging API Developer's Reference Manual	Information on building applications that interface with the ISDN protocol stack via the AG ISDN Messaging API.
AG ISDN Installation Manual	Information on installing AG ISDN software.
AG ISDN Supplementary Services Developer's Reference Manual	Describes ISDN supplementary services accessible via AG ISDN software.

Hardware


This manual...	Provides...
AG-T1 and AG-E1 Installation and Developer's Manual	Installation procedures for an AG-T1 or AG-E1 board, and instructions for configuring it for use. Also introduces T1 and E1 transmissions and signaling.
AG Quad Installation and Developer's Manual	Instructions for installing an AG Quad board, and how to configure it for use. Also introduces T1 and E1 transmissions and signaling.

CT Access


This manual...	Provides...
CT Access Developer's Reference Manual	An overview of CT Access and a reference of functions, events, reason codes, and errors.
CT Access Installation Manual	A description of the installation of the software from the distribution media and the configuration file. It also provides a procedure for verifying your installation.
AG Access Installation Manual	The installation procedure for the ADI service component of CT Access 2.0.
AG Runtime Configuration and Developer's Manual	Information about the AG configuration file, `agmon`, AG board and driver error messages, and AG task processors.

The following manuals provide an overview of the capabilities and functions of the AG ISDN-compatible services that use CT Access: ADI Service Developer's Manual ADI Service Function Reference Manual Switching Service Developer's Reference Manual Voice Message Service Developer's Reference Manual T1/E1 Digital Trunk Monitor Service Developer's Reference Manual

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