Avaya deskphone ntys20dc70e6 사용자 설명서

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Basic features
45
Adjusting the display screen contrast
You can adjust the contrast using the 
Local Tools 
menu; however, 
Avaya recommends that you use the 
Telephone Options
 menu.
Note: 
If an Expansion Module is attached to your Avaya 1230 IP 
Deskphone, changes that you make to the LCD screen contrast of the 
Avaya 1230 IP Deskphone also apply to the display screen contrast 
configuration of the Expansion Module.
Use the following procedure to adjust the display screen contrast.
or
4. To increase or decrease the volume, 
perform one of the following actions:
— Press the
 Up 
or
 Down 
soft keys. 
— Press the 
Up
 or 
Down 
navigation 
keys.
 
5. Press the 
Select
 
soft key to save the 
volume level and return to the 
Telephone Options
 menu.
or
Press the 
Cancel
 
soft key to cancel the 
modifications.
1. Press the 
Services
 key, select 
Telephone Options
, and select 
Contrast adjustment
.
or
Down
Up
or
Cancel
Select