User's Manual
582
Document #: LTRT-65417
MP-11x & MP-124
Parameter
Description
When the device receives a SIP INVITE, it checks the FXO
line polarity. If the polarity is "Reversed", it skips this FXO
line and goes to the next line.
Notes:
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.
Web: Enable Polarity Reversal
EMS: Enable Reversal Polarity
[EnableReversalPolarity]
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.
Web/EMS: Enable Current Disconnect
[EnableCurrentDisconnect]
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.
EMS: Polarity Reversal Type
[PolarityReversalType]
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).
Summary of Contents for MediaPack MP-112
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Page 14: ...User s Manual 14 Document LTRT 65417 MP 11x MP 124 Reader s Notes ...
Page 21: ...Part I Getting Started with Initial Connectivity ...
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Page 30: ...User s Manual 30 Document LTRT 65417 MP 11x MP 124 Reader s Notes ...
Page 31: ...Part II Management Tools ...
Page 32: ......
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Page 91: ...Part III General System Settings ...
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Page 103: ...Part IV General VoIP Configuration ...
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Page 172: ...User s Manual 172 Document LTRT 65417 MP 11x MP 124 Reader s Notes ...
Page 199: ...Part V Gateway Application ...
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Page 287: ...Part VI Stand Alone Survivability Application ...
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Page 319: ...Part VII Maintenance ...
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Page 347: ...Part VIII Status Performance Monitoring and Reporting ...
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Page 377: ...Part IX Diagnostics ...
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Page 403: ...Part X Appendix ...
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