User guide

9BusinessPhone – Dialog 4220 Lite / Dialog 3210
Description
1 Message / Conference
a. To send and receive messages. See section “Messages” on
page 51.
b. To establish a telephone conference. See section “During Calls”
on page 28.
2 Programmable key / Headset key
a. Storing numbers and program functions.
b. The Headset function is only available with option unit
(DBY 410 02) installed. The Headset key is programmed by the
system administrator. See section “Accessories” on page 88.
3 Programmable keys
Storing numbers and program functions. See section “Settings” on
page 82.
4 Inquiry
To make an inquiry to an internal or external party.
See section “During Calls” on page 28.
5 Line
Line key for in and outgoing calls.
6 Volume control
To adjust the volume. See section “Settings” on page 82.
7 Mute
To switch the microphone on or off. See section “During Calls” on
page 28.
8 Loudspeaker on/off
To switch the loudspeaker on or off. See section “During Calls” on
page 28.
9 Clear
To disconnect calls.
10 Loudspeaker
11 Handset with hearing aid function
Please note: The handset may attract and retain small
metal objects in the earcap region.