Nortel Networks meridian m3902 사용자 설명서

The Screen contrast option allows you to adjust the contrast of the display on your 
telephone. After you select Screen contrast from the 

 menu;

From the 

screen, press the 

Key to decrease the display 

contrast level, or press the 

 Key 

to increase the display contrast level.

Press the 

Key to save changes. Press the 

 

Key or 

 Key to exit.

After you select Volume adjustment. . . from the 

 menu,  a list 

of adjustable items for your telephone model appears. It is recommended that you 
adjust these parameters while you are on a telephone call so that you can judge 
the impact of the changes your are making.

1. Select 

 

from the 

menu. 

2. Press the 

Key

to decrease the 

ringer volume, or press the

 Higher

 Key 

to increase the ringer volume.

Press the 

Key to save changes. Press the 

 

Key or 

 Key to exit.

 Headset listen is adjustable on the 

 and M3904 only.

Headset talk and Headset 

sidetone are adjustable on the M3904 
only.

Headset sidetone (M3904 only) is 

the sound of your own voice that you hear 
in the headset speaker.

   

Lower

  

Higher

Ringer

   

Lower

  

Higher

Buzzer

Speaker

Handset listen

Handsfree listen

Headset listen

Headset talk

Headset sidetone