Avaya B5800 User Manual Page 317

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Glossary
BCM Business Communications Manager; a system that includes hardware
and software to provide private network and telephony management
capability to small and meduim-sized businesses.
BEM Business Element Manager; the primary management application for
managing Business Communications Systems. It encompasses
telephony programming, backup management, software update
management, and log management.
Centralized
management
This term is used to describe a central management system that delivers
a set of shared management services and provides a single access
interface to administer multiple branch locations and multiple distributed
B5800 Branch Gateway users.
Centralized
trunking
This term describes routing outgoing external calls from the branch sites
to the central site in order to utilize the central sites PSTN trunks. The
same applies for distributing incoming PSTN calls from the central site
to the appropriate branches.
Distributed
Branch user model
This term describes a B5800 Branch Gateway deployment model where
call processing for the branch phones is provided locally. Non-IP phones
are connected to B5800 Branch Gateway and IP and certain SIP
endpoints (not including the Avaya 9600 SIP phones) can be
administered with B5800 Branch Gateway as their controller. Access to
and from the rest of the Avaya Aura
®
network is via the B5800 Branch
Gateway system's Avaya Aura
®
Session Manager link across the
enterprise WAN. This connection allows for VoIP connectivity to other
B5800 Branch Gateway systems, to centralized trunking and to
centralized applications such as conferencing and Modular Messaging.
Distributed
trunking
This term describes the scenario where each branch retains and uses
its own PSTN trunks for incoming and outgoing external calls.
Local extension See Native extension.
Local
management
This term is used to describe managing a B5800 Branch Gateway device
using the local IP Office Manager application.
Mixed mode
trunking
The flexibility of Avaya Aura
®
Session Manager is such that both
centralized and distributed trunking can be used. For example, routing
all national and international calls via centralized trunking at the
headquarters site while still allowing local calls via the branch sites.
Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012 317
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