Toshiba Business Telephones ユーザーズマニュアル

To customize your telephone, you can adjust the following settings.

 To adjust handset volume



During a call, press down 

 



 or 

 



. When you hang 

up, volume returns to default.

 To adjust the speaker volume for internal/external calls and 



Press 

 and use 

 



 or 

 



 to adjust volume level. 

Press 

 to exit.

 To adjust Ring Tone, Handsfree Answerback and Speaker 



With an idle phone and handset on-hook, press 

 



 or 

 



. 

Available on backlit telephones.
 To adjust the LCD contrast on the backlit telephones

1. Press and hold down the 

 button.

2. Press and release 

 



 or 

 



 repeatedly.

Holding down the Vol key does not continue to change 

the setting. The key must be pressed for each step of contrast 
change.

 To change the LCD back light brightness

For the 4-line LCD telephones:

1. Press 

+

+

+

 (simultaneously).

2. To increase or decrease brightness, press 

 or 

 

softkey on the telephone.

3. Lift the handset off-hook / on-hook to save the settings.

For the 9-line LCD telephones:

1. Press 

+

+

+

 (simultaneously).

2. From the IP Configuration screen, press the  

 

softkey.

3. Press the 



 

 

 softkey.

4. Enter a number 0:Dim - 3:Bright.

5. Press 



 

 softkey twice to return to the IP Configurations 

screen.

6. Lift the handset off-hook / on-hook to save the settings.