Polycom 1500 C ユーザーズマニュアル

Changing the Brightness of the Touch Screen 

Customizing the Phone Display

Polycom, Inc. 

113

Tap  

> 

Settings > Basic > Preferences > Time & Date.

From the Time & Date screen, do one of the following:
— To disable the time and date display, tap Disable.
or
— To enable the time and date display, tap Enable. 

Tap 

 to return to the idle screen.

The brightness of the touch screen has three components:
• Backlight On
• Backlight Idle
• Maximum Intensity
You can modify the Backlight On intensity and the Backlight Idle intensity 

separately. You can choose a high, medium, or low intensity, or turn the 

backlight off entirely.
When you modify the Maximum Intensity, you modify the entire backlight 

intensity scale. For example, if you decrease the Maximum Intensity, the low, 

medium, and high values for the Backlight On intensity and the Backlight Idle 

intensity will decrease proportionally.
The Backlight On intensity applies to following events:
• Any key press
• Incoming calls
• Ending a call, holding a call, resuming a call by the other party
• A voice message received
If you don’t press any keys on the phone, after 20 seconds of the backlight 

turning on, the backlight dims (or changes) to medium in the following cases:
• A call is in progress
• A call is on hold
• There is an incoming call (ringing)
• There is an outgoing call (ringing back)
• Any menu shows on the display
In all other cases, the Backlight Idle intensity applies.