Avaya BCM 4.0 Networking Guide de configuration télécharger pdf (Page 345)

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Chapter 33 Private networking: MCDN over PRI and VoIP 345

BCM 4.0 Networking Configuration Guide

An example of a private network with Meridian 1

Figure 117 shows a private network composed of one central Meridian 1, and two sites with BCM

systems all connected by SL-1, with MCDN activated on all sites. This example uses a coordinated

dialing plan (CDP). The DNs consist of four digits. The first digit is a destination code which is

specific to each system. The last three digits are unique to each telephone within that system. Refer

to “Dialing plan: Private network settings” on page 323 for a description of the dialing plans

available to private networks.

Figure 117 MCDN networking, with a common public network connection

This example could represent a large head office (the Meridian 1) connected to several smaller

branch offices (the two BCMs). In this network, only the head office has trunks connected to the

public network.

The branch offices access the public network through the PRI to the head office. This

configuration allows for cost savings by consolidating the public access trunks. Users at all three

locations access the public network by dialing 9, followed by the public number. For example, a

user in the West End branch might dial 9-555-1212 (for a local call) or 9-1-613-555-1212 (for a

long distance call). These public calls are routed to the Meridian 1 by the BCM routing table.

Routing tables at the Meridian 1 will then select an appropriate public facility for the call.

Note that the Private Network Identifier (PNI) is programmed at each end of the links. The PNI

identifies the BCM to the Meridian 1 system.

Network # 2221

Received # 2221

Internal # 2221

Network # 6221

Received # 6221

Internal # 6221

BCM

West-End branch

PNI= 1

BCM

East-End branch

PNI=1

Central

Office

Meridian M1

PRI (SL-1) PRI (SL-1)

DN: 4221

Voice mail or

Auto Attendant

PRI (public protocol)

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Avaya BCM 4.0 Networking Guide de configuration Page 345

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