Grandstream Networks UCM6510 User Manual page 157

Polarity on Answer Delay
Current Disconnect
Threshold (ms)
Ring Timeout
RX Gain
TX Gain
Use CallerID
Fax Detection
Caller ID Scheme
FXO Dial Delay(ms)
Auto Record
Disable This Trunk
DAHDI Out Line Selection
When FXO port answers the call, FXS may send a Polarity Reversal. If this
interval is shorter than the value of "Polarity on Answer Delay", the Polarity
Reversal will be ignored. Otherwise, the FXO will on-hook to disconnect the
call. The default setting is 600ms.
This is the periodic time (in ms) that the UCM6510 will use to check on a
voltage drop in the line. The default setting is 200. The valid range is 50 to
3000.
Configure the ring timeout (in ms). Trunk (FXO) devices must have a
timeout to determine if there was a hang up before the line is answered.
This value can be used to configure how long it takes before the UCM6510
considers a non-ringing line with hang up activity. The default setting is
8000.
Configure the RX gain for the receiving channel of analog FXO port. The
valid range is from -13.5 (Db) to + 12.0 (Db). The default setting is 0.
Configure the TX gain for the transmitting channel of analog FXO port. The
valid range is from -13.5 (Db) to + 12.0 (Db). The default setting is 0.
Configure to enable CallerID detection. The default setting is "Yes".
Enable to detect Fax signal from the trunk during the call and send the
received Fax to the default Email address in Fax setting page under web
GUI->PBX->Internal Options->Fax/T.38. The default setting is "No".
Note:
If enabled, Fax Pass-through cannot be used.
Select the Caller ID scheme for this trunk. If you are not sure which scheme
to choose, please select "Auto Detect". The default setting is
"Bellcore/Telcordia".
Configure the time interval between off-hook and first dialed digit for
outbound calls.
Enable automatic recording for the calls using this trunk. The default setting
is disabled. The recording files are saved in external storage device if
plugged in and can be accessed under web GUI->CDR->Recording Files.
If selected, the trunk will be disabled.
This is to implement analog trunk outbound line selection strategy. Three
options are available:

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
would be port 1->port 2->port 10->port 16. Every time it will start with
port 1 (if it's idle).
UCM6510 IP PBX User Manual
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