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105BusinessPhone – Dialog 4223 Professional / Dialog 3213
Settings
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.
ì Press to change the volume.
For people with impaired hearing, the handset hearing volume level
can be extra amplified. To change the level:
í*5 Press and hold simultaneously until a ring signal is heard.
The display shows:
The Line 1 key lamp indicates the setting of the option unit:
• ON = amplified volume level.
• OFF = default volume.
Line 1
Ô Press to change to amplified volume level,
Or:
Line 1
ÕÔ Press to change to default volume,
# Press to save setting and exit.
Note: A level change also effects a headset connected to
the headset outlet.
Setting Mode