AASTRA DT292 for MD Evolution User Guide EN - Manual (Page 112)

DT292 Adjustments
MD Evolution – Cordless DT292 111
Display Contrast
You can adjust the contrast of the display to one of eight levels to
make it easier to read.
Route: Settings » Display » Contrast
Contrast Select Ь Ы
Press
The contrast level bar appears. L
or
M
Adjust the contrast
You hear an error beep when either limit is reached. Ь Ы
Press to confirm