User's Manual

Chapter 2: Planning
Before you begin installing and configuring the B5800 Branch Gateway system, you should already have
determined the implementation issues listed in the table below.
You have determined... See
The branch user model you are
deploying.
Branch user deployment models on page 13
The dial plan you are configuring for the
system and each branch.
Dial plan considerations on page 30
The B5800 Branch Gateway licenses
required for this installation.
Licensing on page 16
How you are going to route outgoing
PSTN calls.
Branch PSTN call routing considerations on
page 32
The voicemail solution you are going to
deploy.
Voicemail considerations on page 31
The method you will use to configure and
manage the branches in the system.
B5800 Branch Gateway configuration
methods on page 32
Prerequisites
The following applications and servers must be installed and configured before the B5800
Branch Gateway system is installed.
• Avaya Aura
®
Session Manager must be installed and configured at the headquarters
location.
• Avaya Aura
®
Communication Manager must be installed and configured as a feature
server at the headquarters location.
• If you are going to use Network Management for centralized management of the B5800
Branch Gateway system, Network Management (NM) 6.0, NM 6.0 SP2, plus an additional
B5800 Branch Gateway patch hosted on the Avaya support web site must be installed
and configured.
• A stand-alone Secure Access Link (SAL) gateway must be deployed.
Note:
System Platform's virtual SAL gateway is not supported.
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