Avaya BCM 4.0 Networking Guia de Configuração descarregar pdf (Página 383)

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BCM 4.0 Networking Configuration Guide

Chapter 40

Private networking: PRI Call-by-Call services

The example shown in Figure 127 highlights the use of PRI Call-by-Call services. It shows two

offices of a company, one in New York and one in Toronto. Each office is equipped with a BCM

and a PRI line. Each office has to handle incoming and outgoing calls to the public network. In

addition, employees at each office often have to call colleagues in the other office.

Figure 127 PRI networking using Call-by-Call Services

To reduce long distance costs, and to allow for a coordinated dialing plan between the offices,

private lines are used to handle interoffice traffic. Refer to “Dialing plan: Public network” on

page 317 and “Dialing plan: Private network settings” on page 323.

If Call-by-Call services were not used, each BCM system might have to be equipped with the

following trunks:

• 12 T1 DID lines needed to handle peak incoming call traffic

• eight T1 E&M lines needed to handle inter-office calls

• eight lines needed to handle outgoing public calls

Note: Call by Call Services must be provided by the Central office for

them to work in the BCM.

Network # 2221

Received # 2221

Internal # 2221

DID # 763-2221

Network # 6221

Received # 6221

Internal # 6221

DID # 562-6221

Toronto office

New York office

TIE Connection

Public Network

PRI

BCM

Central

Office

Central

Office

BCM

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