Ericsson DIALOG 4223 PROFESSIONAL - MANUAL 3 User Manual page 95

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Line 2
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Line 2
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Line 2
Dialog 4223 Professional
Option unit (optional)
The option unit DBY 420 01/1 is an optional accessory to be
installed under your telephone set. The unit is used to connect
either an extra bell outside your room, or a busy signal lamp
outside your door.
To check or set the option unit for extra bell or for busy
signal
Press and hold simultaneously until a ring signal is heard.
The display shows
indicates the setting of the option unit:
Off=Extra bell, On=Busy signal lamp. Flashing=Combined extra bell
& busy lamp.
Press to change to busy signal,
or
press to change to extra bell & busy signal,
or
#
press to change to extra bell.
Press to save the setting and exit.
Note: If you do not press
returns to idle about 30 seconds after the last key press.
OPTION PROGRAMMING
#
, the phone automatically
Accessories
and the Line 2 key lamp
95