User's Manual Part 1

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 147 of 320
default setting is “No”.
Polarity on Answer Delay
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 onhook to
disconnect the call. The default setting is 600ms.
Current Disconnect
Threshold (ms)
This is the periodic time (in ms) that the UCM6200 will use to check on a
voltage drop in the line. The default setting is 200. The valid range is 50 to
3000.
Ring Timeout
Configure the ring timeout (in ms). Trunk (FXO) devices must have a
timeout to determine if there was a hangup before the line is answered.
This value can be used to configure how long it takes before the
UCM6200 considers a non-ringing line with hangup activity. The default
setting is 8000.
RX Gain
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.
TX Gain
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.
Use CallerID
Configure to enable CallerID detection. The default setting is “Yes”.
Caller ID Scheme
Select the Caller ID scheme for this trunk. The default setting is
“Bellcore/Telcordia”.
FXO Dial Delay(ms)
Configure the time interval between off-hook and first dialed digit for
outbound calls.
Auto Record
Enable automatic recording for the calls using this trunk. The default
setting is disabled. The recording files can be accessed under web
GUI->CDR->Recording Files.
Disable This Trunk
If selected, the trunk will be disabled.
DAHDI Out Line Selection
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).
 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->10->16->1->2->10->16->1->2->10->16..., following the last
port being used.
 Descend