Grandstream Networks UCM6102 User Manual page 149

Polarity on Answer Delay
Current Disconnect Threshold
(ms)
Ring Timeout
RX Gain
TX Gain
Use CallerID
Fax Mode
Caller ID Scheme
FXO Dial Delay(ms)
Auto Record
Disable This Trunk
Firmware Version 1.0.9.26
polarity reversal is used for signaling the disconnection of a phone line
and the call will be considered as "hangup" on a polarity reversal. The
default setting is "No".
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.
This is the periodic time (in ms) that the UCM6100 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 hangup before the line is answered.
This value can be used to configure how long it takes before the
UCM6100 considers a non-ringing line with hangup 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".
There are three options available in Fax Mode. The default setting is
"None".

None: Disable Fax.

Fax Detect: Fax signal from the user/trunk during the call can be
detected and the received Fax will be sent to the Email address
configured for this extension. If no Email address can be found for the
user, the Fax will be sent to the default Email address configured in
Fax setting page under web UI->PBX->Internal Options->Fax/T.38.

Fax Gateway: If selected, the UCM6100 can support conversation
and processing of Fax data from T.30 to T.38 or T.38 to T.30. This
feature is only available for FXS or FXO port.
Select the Caller ID scheme for this trunk. 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 can be accessed under web
GUI->CDR->Recording Files.
If selected, the trunk will be disabled.
UCM6100 Series IP PBX User Manual Page 148 of 305