Cisco 7800 Series

Step 4 Press Exit.
Adjust the Key Expansion Module Screen Brightness
Procedure
Step 1 Press Applications .
Step 2 Select Settings > Brightness > Brightness - Key expansion module x, where x is the number of the key
expansion module.
Step 3 Press right on the Navigation pad to increase brightness. Press left on the Navigation pad to decrease brightness.
Step 4 Press Save.
Place a Call on the Key Expansion Module
Procedure
Step 1 Press the line button on the key expansion module.
Step 2 Dial a phone number.
Step 3 Pick up your handset.
Troubleshoot the Key Expansion Module
Procedure
Step 1 Open a CLI.
Step 2 Enter the following command to enter debug mode:
debugsh
Step 3 Enter ? to see all available commands and options.
Step 4 Use the applicable commands and options to find the desired information.
Step 5 To exit debug mode, press Ctrl-C.
Cisco IP Phone 7800 and 8800 Series Accessories Guide for Cisco Unified Communications Manager
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Key Expansion Modules
Adjust the Key Expansion Module Screen Brightness