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Chapter 1 Introduction 23

IP Telephony Configuration Guide

between Business Communications Managers. H.323 trunks can support connections to a number

of different types of equipment, including the Meridian 1 (running IPT), Succession 1000/M,

DMS100 switches, and SL100 switches, and trunk applications such as NetMeeting. SIP trunks do

not currently support the MCDN network protocol or interconnection with a Meridian system.

Creating the IP telephony network

This section explains the components of the Business Communications Manager system and the

devices it interoperates to create a network.

The information under the headings in this section describe the various components of the system:

• “Networking with Business Communications Manager” on page 24

• “M1-IPT” on page 25

• “Telephones” on page 25

• “Gatekeepers on the network” on page 25

• “IP network” on page 26

• “Public Switched Telephone Network” on page 27

The following figure shows components of a Business Communications Manager network

configuration.

In this example, two Business Communications Manager systems are connected both through a

PSTN connection and through a WAN connection. The WAN connection uses VoIP trunks. If the

PSTN connections use dedicated ISDN lines, the two systems have backup private networks to

each other. Both Business Communications Manager systems use VoIP trunks through a common

WAN to connect to the Meridian (M1-IPT) system.

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Avaya IP Telephony Guía de configuración Pagina 23