OpenPhone 27 Handset User Guide
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.
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