Avaya Business Communications Manager 5.0 - Planning and Engineering User Manual Page 185

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Nortel Business Communications Manager 5.0
Planning and Engineering
NN40170-200 01.03 Standard
August 2009
Copyright © 2009 Nortel Networks
VoIP trunk gateways
This section provides an overview of VoIP trunk gateways.
Uses for VoIP trunk gateways
You can use a VoIP trunk to establish communications between a BCM and a
remote system across an IP network. Each trunk is associated with a line
record (lines 001–130), and are configured in the same way that other lines
are configured.
You can use VoIP trunks for calls originating from any type of telephone within
the BCM system. Calls coming into the system over VoIP trunks from other
systems can be directed to any type of telephone within the system.
How VoIP trunks make a network
The following figure shows a simple private networking configuration of three
systems connected by VoIP trunks. As in all private networking, each system
has direct routing configurations to the directly adjacent systems. As well, the
dialing plans are configured to ensure that remote calls are correctly routed to
the receiving system, such as, if Node A called someone in Node C.
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