Grandstream Networks UCM630 Series User Manual page 165

Enable automatic recording for the calls using this trunk. The default setting is
Auto Record disabled. The recording files can be accessed under Web GUICDRRecording
Files.
If selected, the trunk will be disabled and incoming/Outgoing calls via this trunk will
Disable This Trunk
not be possible.
This is to implement analog trunk outbound line selection strategy.
Three options are available:


DAHDI Out Line
Selection

The default setting is "Ascend" mode.
The Non-Linear Processing (NLP) in echo cancellation helps to remove/suppress
residual echo components that could not be removed by the LEC (Line Echo
Canceller). Following modes are supported:


Echo Cancellation
Mode


Allows external numbers the option to get directed to the extension that last called
them.
Direct Callback
For Example: User 2002 has dialed external number 061234575 but they were not
reachable, once they have received missed call notification on their phone, they
Ascend
When the call goes out from this analog trunk, it will always try to use the first idle
FXO port. The port order that the call will use to go out if UCM6302 is used would
be port 1port 2. Every time it will start with port 1 (if it is idle).
Poll
When the call goes out from this analog trunk, it will use the port that is not used
last time. And it will always use the port in the order of port 121212...,
following the last port being used in case UCM6302 is used.
Descend
When the call goes out from this analog trunk, it will always try to use the last idle
FXO port. The port order that the call will use to go out if UCM6302 is used would
be port 2port 1. Every time it will start with port 2 (if it is idle).
Default: The NLP limits the signal level to the background noise level when
active, and the background noise level adjustment is low.
High Noise Level Adjustment: The NLP limits the signal level to the
background noise level when active, and the background noise level adjustment
is high.
Noise Masking: The NLP sends sign noise when active, and the background
noise level adjustment is high.
White Noise Injection: The NLP injects white noise when active. The level
corresponds to the background noise level at Sin, and the background noise
level adjustment is high.
UCM630X Series User Manual
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