User's Manual

7. Click OK.
8. Select File > Save Configuration.
The Send Configuration window appears and the Configuration Reboot Mode is set
to Immediate. Do not change the reboot mode.
Setting the branch prefix and local number length for extension
numbering
About this task
Each B5800 Branch Gateway system in the network should have a unique branch number.
That number is added as a prefix to the caller's extension number for calls routed to the Avaya
Aura
®
Session Manager.
The prefix is also used in the Avaya Aura
®
Session Manager configuration to create unique
dial patterns for routing calls to the appropriate B5800 Branch Gateway.
By default B5800 Branch Gateway systems use 3-digit extension numbering starting from 200.
The existing allocated numbers can be changed in bulk using the Tools > Extension
Renumber option. This will add or remove a set value from all existing extension numbers in
the configuration.
Procedure
1. Start Manager and connect to the B5800 Branch Gateway system.
2. In the left navigation pane, click System.
3. Click the System tab.
4. Set the following fields as appropriate:
• Branch Prefix
• Local Number Length
• Proactive
• Reactive
These 4 fields are the key settings for B5800 Branch Gateway operation. See
System tab field descriptions on page 111 for more information.
5. Click OK.
6. Select File > Save Configuration.
The Send Configuration window appears and the Configuration Reboot Mode is set
to Immediate. Do not change the reboot mode.
Initial configuration for a Centralized Branch
110 Implementing the Avaya B5800 Branch Gateway November 2011
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