Configuration manual

Name Range or Default Description
frequency of the messages
when the Avaya
Aura
®
Session Manager line
is currently out of service.
Changing the default codec selection
About this task
By default, all B5800 Branch Gateway IP trunks and extensions use automatic codec
negotiation. The default negotiation order is G729(a) 8K CS-ACELP, G711 U-Law 64K, G711
A-Law 64K, and G723.1 6K3 MP-MLQ. G.722 64K is also supported.
Note:
G.722 64K is not supported in B5800 Branch Gateway and CS 1000 deployments where
NRS is used for SIP interoperability.
If bandwidth between the B5800 Branch Gateway and CS 1000 sites is sufficient, change the
first default preference to one of the G711 codecs. Note that the specific setting for individual
branch trunks and extensions can be set to override the system setting if necessary.
Important:
The configuration changes in the following procedure will require the B5800 Branch
Gateway system to be rebooted.
Procedure
1. From the System Manager console, select the B5800 Branch Gateway device and
click Edit to edit the system configuration for the device. IP Office Manager will be
launched on your PC. For more information, see Editing a B5800 Branch Gateway
system configuration from System Manager on page 159.
2. In the left navigation pane, click System.
3. Click the Codecs tab.
4. In the Available Codecs section, check the appropriate codecs and move them to
the Selected section.
The order of the codecs listed in the Selected section indicates the preferred codec
order for trunks and extensions that are using automatic codec negotiation. See
Automatic codec preference settings on page 145 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 branch configuration
144 Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012
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