Cisco 8800 Series User Manual

Step 2 Select User preferences > Screen preferences > Display brightness.
Step 3 Press the Navigation cluster, right or left, to increase or decrease the brightness.
Step 4 Press Save.
Adjust the Backlight Duration
You can adjust the backlight to make the phone screen easier to read.
Procedure
Step 1 Press Applications .
Step 2 Select User preferences > Screen preferences > Backlight timer.
Step 3 Press Edit or Select button.
Step 4 Scroll through the list and select a duration for which the backlight remains on:
• 1 min
• 5 min
• 30 min
• Always On
Default value is 5 min.
Note
Step 5 Press Set to apply the selection.
Adjust Backlight Timer from the Phone Web Interface
You can save energy by disabling the backlight on each phone at a preset time.
Procedure
Step 1 Select Voice > User.
Step 2 In the Screen section, select a duration for the Back Light Timer parameter.
You can also configure this parameter in the configuration file (cfg.xml) by entering a string in this format:
<Back_Light_Timer ua="rw">30s</Back_Light_Timer>
The allowed values are 1m|5m|30m|Always On. The default value is 5m (5 minutes).
Step 3 In the Display Brightness field, enter an integer ranging from 4 to 15 for the desired brightness.
You can also configure this parameter in the configuration file (cfg.xml) by entering a string in this format:
Cisco IP Phone 8800 Series Multiplatform Phones User Guide
134
Settings
Adjust the Backlight Duration

Cisco 8800 Series Specifications

General

Protocols	SIP, SCCP
Audio	Wideband audio
Connectivity	Gigabit Ethernet
Power	Power over Ethernet (PoE)
Bluetooth	Yes
USB	Yes
Codec Support	G.711, G.722, G.729, iLBC
Dimensions	Varies by model
Weight	Varies by model
Wi-Fi	Yes (varies by model)