Netgear XM128 QIG - Quick Install Guide - Page 145

Appendix G, ISDN Reference

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Appendix G ISDN Reference This appendix explains ISDN technical terms. The appendix also provides you with forms to assist you when working with your local telephone company to set up ISDN services to use with your Model XM128 ISDN Digital Modem. ISDN Overview ISDN is a global system that provides a variety of high-speed digital communication solutions, while maintaining compatibility with existing analog voice, modem, data, and fax protocols. ISDN is based on various standards that define communications between switches and the equipment that connects to the switches. These standards allow most types of equipment to communicate across different types of switches in every part of the world. Implementation of network switches by telephone companies differs from country to country. In North America, a separate ISDN standard called National ISDN (NI-1) is currently being adopted by network providers and equipment manufacturers. When fully implemented, NI-1 will make installation of ISDN equipment much easier. Currently, many different types of custom signaling protocols are used. Therefore, you must configure your Model XM128 modem for the type of signaling that is used by your network. In the rest of the world, Digital Subscriber Signaling Number 1 (DSS1) is widely deployed with minor differences from country to country. In Germany, there is an old ISDN system called 1TR6, which will be replaced gradually by DSS1. ISDN Reference G-1

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ISDN Reference
G-1
Appendix G
ISDN Reference
This appendix explains ISDN technical terms. The appendix also provides you with forms to assist
you when working with your local telephone company to set up ISDN services to use with your
Model XM128 ISDN Digital Modem.
ISDN Overview
ISDN is a global system that provides a variety of high-speed digital communication solutions,
while maintaining compatibility with existing analog voice, modem, data, and fax protocols.
ISDN is based on various standards that define communications between switches and the
equipment that connects to the switches. These standards allow most types of equipment to
communicate across different types of switches in every part of the world. Implementation of
network switches by telephone companies differs from country to country.
In North America, a separate ISDN standard called National ISDN (NI-1) is currently being
adopted by network providers and equipment manufacturers. When fully implemented, NI-1 will
make installation of ISDN equipment much easier. Currently, many different types of custom
signaling protocols are used. Therefore, you must configure your Model XM128 modem for the
type of signaling that is used by your network.
In the rest of the world, Digital Subscriber Signaling Number 1 (DSS1) is widely deployed with
minor differences from country to country. In Germany, there is an old ISDN system called 1TR6,
which will be replaced gradually by DSS1.