Avaya BCM 4.0 Networking Guide de configuration télécharger pdf (Page 49)

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Chapter 2 System telephony networking overview 49

BCM 4.0 Networking Configuration Guide

PRI networking using Call-by-Call services

The example shown in Figure 5 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

system 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.

Refer to “Private networking: PRI Call-by-Call services” on page 383 for more information.

Figure 5 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 inter-office traffic.

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

PRI SL-1/Q.Sig/DPNSS and VoIP trunk networking

PRI SL-1 trunks and VoIP trunks can be used to create private networks between BCM systems or

between BCM systems and larger call servers such as Meridian 1, Succession 1000/M, DMS100/

250 and CSE.

ETSI-QSIG and DPNSS private networking is configured very similarly, although network

features may be supported slightly differently due to local line and network requirements.

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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Avaya BCM 4.0 Networking Guide de configuration Page 49

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