Mitel 3300 Manuale Utente
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.