Ericsson DIALOG 4223 PROFESSIONAL - MANUAL 2 User Manual page 118

Accessories
PhoneSet
Select
Down
or
Select
Ô
Line 2
Ô Õ
Line 2
Ô Ö
Line 2
118
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
Dialog 4223 Professional:
Press (see display).
PhoneSet
If
Press (see display).
Up
Press to frame
Press (see display).
The Line 2 key lamp 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.
Exit
Press to save the setting and exit (see display).
Note: If you do not press
returns to idle about 30 seconds after the last key press.
more...
is not shown, press
Option Unit Settings
Exit
Dialog 4223 Professional/Dialog 4225 Vision
until appearing.
(see display).
, the phone automatically