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.
ìPress 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:
Line1 ÕÔPress 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