AudioCodes Mediant 1000B User Manual page 935

User's Manual
Parameter
Web: Enable Polarity Reversal
EMS: Enable Reversal Polarity
CLI: polarity-rvrsl
[EnableReversalPolarity]
Web/EMS: Enable Current
Disconnect
CLI: current-disc
[EnableCurrentDisconnect]
EMS: Polarity Reversal Type
CLI: polarity-reversal-type
[PolarityReversalType]
Version 6.8
goes to the next line.
Notes:

For this parameter to take effect, a device reset is required.

To take advantage of this new feature, configure all FXO
lines as a single Trunk Group with ascending or descending
channel select mode, and configure routing rules to route
incoming INVITE messages to this Trunk Group.

This parameter is applicable only to FXO interfaces.
Enables the polarity reversal feature for call release.

[0] Disable = (Default) Disable the polarity reversal service.

[1] Enable = Enable the polarity reversal service.
If the polarity reversal service is enabled, the FXS interface
changes the line polarity on call answer and then changes it
back on call release.
The FXO interface sends a 200 OK response when polarity
reversal signal is detected (applicable only to one-stage dialing)
and releases a call when a second polarity reversal signal is
detected.
Note: This parameter can also be configured in a Tel Profile.
Enables call release upon detection of a Current Disconnect
signal.

[0] Disable = (Default) Disable the current disconnect
service.

[1] Enable = Enable the current disconnect service.
If the current disconnect service is enabled:

The FXO releases a call when a current disconnect signal is
detected on its port.

The FXS interface generates a 'Current Disconnect Pulse'
after a call is released from IP.
The current disconnect duration is configured by the
CurrentDisconnectDuration parameter. The current disconnect
threshold (FXO only) is configured by the
CurrentDisconnectDefaultThreshold parameter. The frequency
at which the analog line voltage is sampled is configured by the
TimeToSampleAnalogLineVoltage parameter.
Note: This parameter can also be configured in a Tel Profile.
Defines the voltage change slope during polarity reversal or
wink.

[0] = (Default) Soft reverse polarity.

[1] = Hard reverse polarity.
Notes:

This parameter is applicable only to FXS interfaces.

Some Caller ID signals use reversal polarity and/or Wink
signals. In these cases, it is recommended to set the
parameter PolarityReversalType to 1 (Hard).

For this parameter to take effect, a device reset is required.
935
51. Configuration Parameters Reference
Description
Mediant 1000B Gateway & SBC