Grandstream UCM6510 User Manual - Manual (Page 139)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 138 of 313
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".
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 UCM6510 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 UCM6510
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".
Fax Detection
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.
Caller ID Scheme
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".
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 are saved in external storage device
if plugged in and 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: