User guide

Settings
BusinessPhone – Dialog 4220 Lite / Dialog 321086
Handset and loudspeaker volume
Use the volume keys. You can set different volume levels for
internal and external calls and for Background Music. During a call,
adjust handset listening volume in handset mode. Adjust
loudspeaker volume in Monitor mode or during Background Music.
General:
ì Press to change the volume.
Loudspeaker volume during Group Listening
Note: Dialog 4220 Lite only.
d Replace the handset.
ì Press to change the volume.
u Lift the handset.
 Press the Loudspeaker key.