Troubleshoot The Key Expansion Module; Cisco Ip Phone 8800 Series Multiplatform Phones Administration Guide - Cisco 8851 Administration Manual

Procedure
Step 1 Restart the expansion module by disconnecting the power source, waiting a few seconds, and then reconnecting
it.
Step 2
As the expansion module powers up, press and hold Page 1. As the LCD screen turns white, continue pressing
Page 1 for at least one second.
Step 3 Release Page 1. The LEDs turn red.
Step 4 Immediately press Page 2 and continue pressing Page 2 for at least one second.
Step 5
Release Page 2. The LEDs turn amber.
Step 6 Press Lines 5, 14, 1, 18, 10, and 9 in sequence.
The LCD screen turns blue. A spinning icon is displayed in the center of the screen.
The key expansion module resets.

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 8800 Series Multiplatform Phones Administration Guide

Troubleshoot the Key Expansion Module
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