What is Branch Office? 23
for large systems to be supported as a Branch Office. A mixture of pre
CS 1000 Release 5.0 branches are supported with CS 1000 Release 5.0
branches as long as the main office is running the latest software.
The Branch Office featuredoes notchange with the addition of large system
based branches. The Branch Office feature is ported to a large system.
Both small and large systems are supported as either main or branch
offices with only one restriction; the main must be running the highest
release of software.
Support is available for CS 1000 Release5.0 Branch Office features, as
long as the main office is running the highest release of software. For
example, Branch offices can be either the SSC based MG 1000B (CS 1000
Release 4.5), or the new MGC based MG1000B (CS 1000 Release 5.0).
With CS 1000 Release 5.0 and the introduction of the new hardware
platforms, the following configurations are supported:
•Main Office: MGCbasedsystem. Branch Office: MGC based MG
1000B.
•Main Office: MGC based system. Branch Office: MGC based MG
1000B (large system software stream).
•Main Office: Largesystem (1000M or1000E). Branch Office: MGC
based MG 1000B.
•Main Office: Largesystem (1000M or1000E). Branch Office: MGC
based MG 1000B (large system software stream).
For small Branch Office configurations, the Survivable Remote Gateway
feature can provide the samefunctionality and benefits as the Branch Office
feature.
Youcan implement the Branch Office feature as a new hardware
configuration. It can also be created by converting an existing Small System
to an MG 1000B platform (see "Converting a Small System to a Branch
Office" (page 201)). The functionality is the same in both configurations.
The main office can be any one of the CS 1000 systems (see ""Main office
hardware description" (page 28)" More than one Branch Office location
can be associated with a single main office. In addition, one Branch Office
location can be associated with more than one main office.
A Branch Office is designed to work with a main office only if the two offices
use a common dialing plan. Any other configuration is not guaranteed to
work properly.
Figure 1 "Branch Office associated with a CS 1000E main office" (page
24) shows a Branch Office network.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20June 2007
Copyright© 2007, Nor tel Networks
.