Enabling Silence Suppression On Vtl Calls; Using A Vtl Password - 3Com 3C10402B Administrator's Manual

Enabling Silence
Suppression on VTL
Calls
Using a VTL
Password
For more information about how compression affects bandwidth, see
"Audio Settings"
During VTL call setup, the VTL software at each end of the call negotiates
a compression level that is supported by both systems. For example,
System A is configured for G729, high compression, and System B is
configured for G711, no compression. A VTL call between System A and
System B will use G711, no compression. It does not matter which system
initiates the call.
To enable VTL audio compression:
1 Click System-Wide Settings > Audio Settings.
2 Click the Audio Compression on VTL Calls check box and then click OK.
You can enable silence suppression for VTL calls. The default condition is
disabled because silence suppression can compromise audio quality. For
more information about how compression affects bandwidth, see
Settings" on page
When you enable VTL silence suppression, the VTL software attempts to
use silence suppression on all VTL calls. If the other system is not
configured to support silence suppression, the local VTL software
attempts to find a compatible communications mode.
Do not enable silence suppression unless you have network congestion
problems you cannot solve otherwise. Enabling silence suppression can
reduce network traffic, but the result is a compromise to audio quality.
To enable silence suppression on VTLs:
1 Click System-Wide Settings > Audio Settings.
2 Under VTL Audio Calls Settings, enable the Enable Silence Suppression
check box.
3 Click OK.
To allow users on one system to place VTL calls to another system and
then place long-distance (toll) calls from that location (a practice called
'hop off'), you can configure a VTL password.
When an system receives a VTL call from a user on another system, it can
allow that user to make long-distance calls if the incoming VTL call
on page 37.
37.

Using a VTL Password

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