User Manual

Description
Dialog 4223 Professional8
13 Loudspeaker on/off
a. To activate Group Listening. See section “During Calls” on
page 38.
b. To activate handsfree conversation. See section “During Calls”
on page 38.
c. To activate Loudspeaker Preset. See section “Headset Preset”
on page 92.
14 Mute
a. To switch the microphone on or off during a call. See section
“Mute” on page 39.
b. To switch off the ring signal in idle mode or when ringing. See
sections “Mute ring signal” on page 84 and “Silent Ringing” on
page 84.
15 Volume control
To change the volume. See section “Settings” on page 77.
16 Loudspeaker
17 Handset
Supplied with hearing aid function as standard. An extra handset
can be connected, see section “Accessories” on page 90.
Please note: The handset may attract and retain small
metal objects in the earcap region.
18 Pull-out leaf for easy guide (optional)
See section “Pull-out leaf (optional)” on page 94.
19 Key panel
With 17 programmable keys. Up to four panels can be connected.
See section “Key panel” on page 90. Use the Designation Card
Manager to make and print your own key panel designation cards,
see below.
Notes:
Depending on the system version, the Dialog 4223
Professional phone can be delivered with one key panel as
standard.
The possible number of key panels is system version
dependent.