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Dispatching Centre Instructions 4.2
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ALARM Call - Intercom
1. The process starts the moment the ALARM button is pressed on any audio unit
(except for the pre-set machine room – dispatching centre unit). Upon the
press, LN
calls to the pre-set machine room – dispatching centre audio unit
(refer to Automatic Dialling for details).
2. When the incoming call is answered by the operator, the LN system voice
message is played.
3. The answered call must be manually confirmed first. This is done by button 1
on the dispatcher’s phone.
4. Then, the voice connection with the calling audio unit is activated.
5. The call is time-limited (by the “Attention, the call is ending” message), but can
be prolonged using the button 4.
6. Press 5 or # (or hang up, but this termination takes a longer time) to
terminate the call.
Caution

No alarm call can be made from the machine room audio unit set as the
dispatching centre. The alarm call is set to the audio unit that was the last
to activate the Alarm function. If no alarm was activated on any audio
unit, the machine room audio unit sets up no call.

If a call is set for a non-existent machine room audio unit, the alarm call is
not established (valid for settings #9, #0). If more numbers than one are
pre-programmed, the non-existent audio unit is skipped.

Alarm – Intercom setup . During the Alarm – intercom setup, there is
unilateral audibility between the machine room audio unit and the alarm
initiating audio unit at first and, when the call is confirmed, there is
bilateral audibility.

If you set #1 to #8 into the checking call memory (i.e. checking calls will
be set up to the machine room audio unit), it will be impossible to initiate
alarm from the set audio unit.

When the machine room audio unit - intercom is called, the voice message
for the dispatching centre is played to the calling unit too.