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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1421Malicious Call Trace
20
Malicious Call Trace
Malicious Call Trace (MCT) allows you to trace malicious calls. MCT allows you
to define a group of telephone users who can notify others in the group when they
receive a malicious call. These users then can retrieve information related to the
call. Using this information, you can identify the malicious call source or provide
information to personnel at an adjacent switch to complete the trace. MCT also
allows you to record the malicious call.
You allow users in the group to activate MCT and/or to control malicious call
trace. The controlling telephone user, or controller, receives the information that
MCT collects on the call.
MCT Voice Recorder
The MCT Voice Recorder is any type of audio recorder (for example, a standard
audio cassette player) that you can control via the DEFINITY Auxiliary Trunk
board.
To record the call, manually place the MCT Voice Recorder in Record mode. The
telephone user then activates the MCT feature which applies power to the recorder
(via the connected Auxiliary Trunk’s control signal interface).
Activating MCT
To activate MCT while on an active malicious call, perform one of the following:
■ Push an MCT-Activate feature button
■ Place the call on hold, get a second call appearance, and dial an
MCT-Activate Feature Access Code (FAC). After the dial tone, the user
then dials their own extension, presses
#, or waits for a 10-second time-out.
■ Signal another user in the defined group to activate MCT. The co-worker
activates MCT, waits for the dial tone, and dials the call recipient’s
extension.
■ Inform a controller, who can request that another switch continue tracing
the call.
The switches must be tandemed. The controller on the first switch supplies
the trunk member port id to be traced. The controller on the second switch
activates MCT and presses
*, followed by the trunk port id. The letters A
through E of a port id are entered as 1 through 5 on the station keypad. For
example, trunk port id 01C0401 would be entered as 0130401.