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Description
BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212
8
13
Volume control
To adjust the volume. See section “Settings” on page 88.
14 Microphone
15
Optional key panel
17 Dual-Function programmable keys.
Note:
Use only an optional key panel of type DBY 419 01.
16
Loudspeaker
17
Handset with hearing aid function
Please note:
The handset may attract and retain small
metal objects in the earcap region.