Option Unit - Ericsson Dialog 4223 Professional User Manual

Accessories
112
Downloaded from www.Manualslib.com

Option unit

Dialog 4223 Professional
The Option unit DBY 420 01/1 is an optional accessory, to be
installed on the bottom of your telephone set. The following devices
can be installed via the Option unit:
•
í*1
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:
OPTION PROGRAMMING
The Line 2 key lamp indicates the setting of the option unit:
•
•
Ô
•
Line 2 Press to change to busy signal,
Ô Õ
Or:
Line 2 Press to change to extra bell & busy signal,
Ö Ö Ô
Or:
#
Line 2 Press to change to extra bell.
Press to save the setting and exit.
manuals search engine
Extra bell or busy indication outside your door
Off=Extra bell
On=Busy signal lamp
Flashing=Combined extra bell & busy lamp.
Note: If you do not press #, the phone automatically
returns to idle about 30 seconds after the last key press.
BusinessPhone – Dialog 4223 Professional / Dialog 3213