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Exchange Line Keys
&
Lamps
Top White
Glow indicates call on
exchange line.
Flickers to show a call on
trunk monitor.
Lower Red
Flickers when operator has
control of exchange line.
Glows until call extended
to an extension is
answered.
Glows on all busy exchange
lines when key T
depressed.
Glows during the progress of
a serial call.
Extension Keys
&
Lamps
Keys
Press to call an extension.
Key G
LAMPGL 1
When an exchange line
key is pressed, lamp GL1
glows and calls can be
connected to extensions
numbered in the
LOWER
halt of extension keys.
Lamp
«anesN
Glows on busy extensions
when exchange Ii ne
answered or selected and
when key T is pressed.
LAMP
GL2
When key G is pressed,
amp GL2 glows, and
calls can be connected to
extensions numbered in
the
UPPER
half of
extension keys.
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