Cortelco 8012 用户手册

54

The display contrast may be adjusted to provide better visability.
1.

Press the Menu soft key.

2.

Press  

 or 

 to select HS Settings.

3.

Press the Select soft key.

4.

Press the 

 or 

  repeatedly to choose LCD Contrast.

5.

Press the Select soft key.

6.

Press the 

 or 

 repeatedly to choose the desired contrast level.  Seven-

teen levels are available.

7.

Press the Save soft key to confirm and exit.

8.

Press 

 to return to standby mode.