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Troubleshooting and Maintenance

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Troubleshooting and Maintenance Overview

This chapter provides information that can assist you in troubleshooting problems with your Cisco Unified

IP Phone or with your IP telephony network. It also explains how to clean and maintain your phone.

For additional troubleshooting information, see the Using the 79xx Status Information For Troubleshooting

tech note. That document is available to registered Cisco.com users at this URL:

http://www.cisco.com/en/US/products/hw/phones/ps379/products_tech_note09186a00800945bd.shtml

Troubleshooting

This section contains the following topics.

Startup Problems

After installing a Cisco Unified IP Phone into your network and adding it to Cisco Unified Communications

Manager, the phone should start up as described in the

not start up properly, see the following sections for troubleshooting information.

Cisco Unified IP Phone Does Not Go Through Normal Startup Process

Problem

When you connect a Cisco Unified IP Phone into the network port, the phone should go through its normal

startup process and the LCD screen should display information.

Cause

If the phone does not go through the startup process, the cause may be faulty cables, bad connections, network

outages, lack of power, or the phone may not be functional.

Troubleshooting and Maintenance Overview, on page 1

Troubleshooting, on page 1

Maintenance, on page 22

Phone Startup Process

Verification. If the phone does

Troubleshooting and Maintenance