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Configuring Gateway Settings
C
ISDN
ONFIGURING
C
B
HANNEL
ONDING
S
ETTINGS FOR
D
OWNSPEEDING
98
SCOPIA 400/1000 Gateway User Guide
7
You can configure the following data settings:
Select the Enable T.120 check box to enable transparent support for
T.120 capabilities.
Select the Enable FECC check box to enable transparent support
for Far End Camera Control (FECC) capabilities.
In the Bonding section of the Settings tab, you can configure ISDN channel
bonding parameters that affect downspeeding functionality.
The Bonding section is not available in Gateway S40 SP.
Note
Downspeeding is the ability to complete and maintain a call when ISDN
conditions are bad. In downspeeding, call capabilities are automatically
renegotiated when a call fails. Downspeeding contributes to a higher percentage
of call completion on the network. The Gateway supports downspeeding at call
setup and in mid-call.
With downspeeding, when connection problems occur at call setup, the Gateway
attempts to connect a call at a lower bit rate than that requested. Administrators
can configure the Gateway to attempt to connect a video call at a specified
minimum bit rate, or to attempt to connect the call as a voice call.
In downspeeding, when connection problems occur in mid-call, the Gateway
attempts to connect a video call at the specified lower bit rate. When
downspeeding is complete and the call is connected at the specified lower bit
rate, the Gateway notifies the Internet Protocol (IP) endpoint of the new call rate.
Procedure
1
In the Gateway interface, on the sidebar, click Gateway (if not already
selected).
2
Click the Settings tab.
Click the Bonding button.
3
Select the Enable bonding check box to enable ISDN bonding support.
4
In the Maximum B channels for bonded call field, choose the maximum
5
number of B channels—3, 4, 5, 6, 8, 12, 23 or 30—that you want to
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