User's Manual

Name Range or Default Description
Length should not exceed
15 digits.
Proactive Default = 60 seconds The B5800 Branch Gateway
sends regular SIP OPTION
messages to the Avaya
Aura
®
Session Manager line
in order to check the status of
the line. This setting controls
the frequency of the
messages when the Avaya
Aura
®
Session Manager line
is currently in service. Note
that centralized extensions
use their own settings.
Reactive Default = 60 seconds The B5800 Branch Gateway
sends regular SIP OPTION
messages to the Avaya
Aura
®
Session Manager line
in order to check the status of
line. This setting controls the
frequency of the messages
when the Avaya
Aura
®
Session Manager line
is currently out of service.
Note that centralized
extensions use their own
settings.
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.
If bandwidth between the B5800 Branch Gateway and Avaya Aura
®
sites is sufficient, we
recommend that you 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.
Administering a Session Manager line for each branch
Implementing the Avaya B5800 Branch Gateway November 2011 139