Mitel 3300 - Adjusting Display Contrast

OpenPhone 27 Handset User Guide
Page 18
Adjusting the contrast
To adjust the contrast:
1. Short press
.
2. Press
to select Local Mode.
3. Press OK.
4. Press
to select Telephone Option.
5. Press OK.
6. Press
to select Contrast.
7. Press OK.
8. Press
to select the desired contrast. There are seven levels. 1 is lightest, 7 is darkest.
9. Press OK.
10. Press Esc.