Avaya BCM50 Konfigurationsanleitung PDF herunterladen (Seite 42)

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42 Chapter 2 System telephony networking overview

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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

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

between BCM systems and larger call servers such as Meridian 1, Succession 1000/M, DMS-100/

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.

If the MCDN protocol is added to this type of private network, the network provides additional

network management features, as well as allowing centralized voice mail features to be available

to all nodes on the network.

The following topics describe the different aspects of SL-1 and MCDN private networking.

• “System dialing plans” on page 43

• “Creating tandem private networks” on page 43

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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