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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 Chapter 2 - AG ISDN Programming Model Details on initializing an AG ISDN application Chapter 3 - Initializing an AG ISDN Application A detailed discussion on how to write an AG ISDN call control application using the NCC Service Chapter 4 - AG ISDN Call Control (NCC Service) A detailed discussion on how to write an AG ISDN call control application using the ADI Service Chapter 5 - AG ISDN Call Control (ADI Service) A description of the modes available for routing outgoing calls on an ISDN trunk Chapter 6 - AG ISDN B Channel Assignment An overview of the sample call control applications included in the AG ISDN software package Chapter 7 - Demonstration Programs A list of terms and definitions Appendix A - Glossary A list of AG ISDN parameters Appendix B - ISDN TCP Parameters A description of Non-Facility Associated Signaling and D-channel backup Appendix C - NFAS and D Channel Backup A list of additional sources of information on ISDN Appendix D - 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	Chapter 2 - AG ISDN Programming Model
Details on initializing an AG ISDN application	Chapter 3 - Initializing an AG ISDN Application
A detailed discussion on how to write an AG ISDN call control application using the NCC Service	Chapter 4 - AG ISDN Call Control (NCC Service)
A detailed discussion on how to write an AG ISDN call control application using the ADI Service	Chapter 5 - AG ISDN Call Control (ADI Service)
A description of the modes available for routing outgoing calls on an ISDN trunk	Chapter 6 - AG ISDN B Channel Assignment
An overview of the sample call control applications included in the AG ISDN software package	Chapter 7 - Demonstration Programs
A list of terms and definitions	Appendix A - Glossary
A list of AG ISDN parameters	Appendix B - ISDN TCP Parameters
A description of Non-Facility Associated Signaling and D-channel backup	Appendix C - NFAS and D Channel Backup
A list of additional sources of information on ISDN	Appendix D - 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. AG ISDN Management API Developer's Reference Manual Information on using the AG ISDN Management service library to interact with the ISDN stack. Hardware This manual... Provides... AG-T1 and AG-E1 Installation and Developer's Manual Instructions for installing an AG-T1 or AG-E1 board, and how to configure it for use. AG Quad Installation and Developer's Manual Instructions for installing an AG Quad board, and how to configure it for use. AG 4000 Installation and Developer's Manual Instructions for installing an AG 4000 board, and how to configure it for use. CT Access This manual... Provides... Natural Access installation booklet An overview of the Natural Access CD-ROM, and instructions on installing software from the CD-ROM. 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 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 Natural Call Control Service Developer's 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

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.
AG ISDN Management API Developer's Reference Manual	Information on using the AG ISDN Management service library to interact with the ISDN stack.

This manual...	Provides...
AG-T1 and AG-E1 Installation and Developer's Manual	Instructions for installing an AG-T1 or AG-E1 board, and how to configure it for use.
AG Quad Installation and Developer's Manual	Instructions for installing an AG Quad board, and how to configure it for use.
AG 4000 Installation and Developer's Manual	Instructions for installing an AG 4000 board, and how to configure it for use.

This manual...	Provides...
Natural Access installation booklet	An overview of the Natural Access CD-ROM, and instructions on installing software from the CD-ROM.
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 Runtime Configuration and Developer's Manual	Information about the AG configuration file, `agmon`, AG board and driver error messages, and AG task processors.

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