Specifications

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Introduction
IMI 66-031
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The user must lift the handset to complete the call voice link.
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Lifting the handset or pressing any other key will cancel further
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automatic redial action.
Users of the optional speakerphone station
can complete the call voice link by pressing the MONITOR OFF key
instead of lifting the handset.
The system will detect an A-lead contact closure on certain incoming
lines. When the system detects an A-lead contact Closure by an
external device connected to one of these lines, it causes a busy line
light indication for this line to appear at all the stations in the
system.
This A-lead contact closure provides detection only.
The
system does not send any A-lead signal to the external device
connected to the line.
Pressing the line select key on a system
station cannot interrupt the external A-lead device unless the line is
programmed to be non-private.
Refer to the discussion titled
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The system provides basic, lA2 type features.
Features such as
selective line pickup, common line,
hold, and multiline pickup and
hold are available at every station.
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'The system programming is electronically protected by a "super-cap"
device during an AC power failure.
The stored program data will
remain in memory for a minimum of W-*:hours after AC power fails or is
disconnected,
Some key system models include a system clock. On
those models,
the system clock will continue to run and keep time for
at least 30 minutes after an AC power failure or disconnect. :
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There is an optionally available 8-line telephone station equipped
with 14 visual indicators adjacent to the memory keys.
This station
provides all of the available features in addition to a Busy Lamp
Field (BLF) display.
The visual indicators of this station display
the status of the Direct Station Selection (DSS) intercom stations
provided by the system at the key locations.