NetGen Communications SmartATA Series User Manual page 60

SMART ATA
Table 24 - Line configuration parameter
Title Explanation
Gain to IP Set the voice volume gain toward IP side, the default is 0. Taking
decibel as the unit, setting range is -3 ~ +9 decibels. -3 means declining
of 3 decibels; +3 denotes the amplification of 3 decibels.
Gain to PSTN Set the voice volume gain toward PSTN side, the default is -3. Taking
decibel as the unit, setting range is -6 ~ +9 decibels.
Impedance Set the parameter of FXO (Line) impedance, with the default of 600
ohm. The optional settings are below:
Complex
600（ohm）
900（ohm）
Outplusing delay Set the time interval between the FXO (Line) going off-hook and
starting outpulsing of the first digit to the PSTN. The default is 400 in
milliseconds.
Ring relay Whether to relay the ring of inbound call to the FXS (Phone) port when
applying to DID. The default is "Phone ring independently".
Busy line handling Either a voice prompt or hanging up can be applied to FXO (Line) port
when an incoming call goes to the FXS (Phone) port which is in busy.
This only applies to DID feature.
PSTN failover Whether to route a call to the PSTN through an FXO (Line) port when
the IP network faults or no response to the call request. Default selected.
Caller ID detection
Before ringing
mode.
After ringing
Inbound first digit Set the timeout of calling DTMF on FXO (Line) port for inbound calls,
timeout ranging from 10-60 seconds, with default of 24 seconds.
Answer delay Set the delay time of outbound connection ranging from 10-60 seconds,
with default of 12 seconds. Also see "Delay sending 200OK" on page
"Phone/Line > Line"
Off-hook for call Used for binding an FXO (Line) port with an FXS (Phone) port. For
rejection inbound calls to an FXO (Line) port, if the associated FXS (Phone) port
is busy, the Smart ATA will hang up after off hook according to the
time set by the parameter, so as to refuse the upcoming call. The
duration of the off hook is 500~5000 milliseconds, with a default of 600
milliseconds.
On-hook protection Protection period following hang up of FXO (Line) port. During this
time period, Smart ATA ignores any voltage variation of line. Value range is
100~5000 milliseconds, the default is 400 in milliseconds.
Polarity detection. Choose whether to activate the detection of reverse polarity signal of
FXO (Line) port. Note the detection will work only when the trunk
supports polarity reversal.
Busy detection
Repeat Smart ATA will regard the busy tone signal with the repeat times
specified here as a hang-up signal. Default is 2, effective range is 2 ~ 7.
On-time Set duration of busy tone signal, the default is 350 in milliseconds.
Off-time Set the interval time of busy tone, the default is 350 in milliseconds.
The threshold of Default is -23(dB), effective range is -15 ~-29(dB).
busy tone
Page 52
Configuration Manual
NetGen Communications, Inc.