Chapter 9 Troubleshooting and Maintenance

Resolving Startup Problems

Verifying IP Addressing and Routing, page 9-5

Verifying DNS Settings, page 9-6

Verifying Cisco Unified CallManager Settings, page 9-6

Cisco Unified CallManager and TFTP Services Are Not Running, page 9-6

Creating a New Configuration File, page 9-7

Registering the Phone with Cisco Unified CallManager, page 9-8

In addition, problems with security may prevent the phone from starting up properly. See the “Troubleshooting Cisco Unified IP Phone Security” section on page 9-12for more information.

Identifying Error Messages

As the phone cycles through the startup process, you can access status messages that might provide you with information about the cause of a problem. See the “Status Messages Screen” section on page 7-4for instructions about accessing status messages and for a list of potential errors, their explanations, and their solutions.

Checking Network Connectivity

If the network is down between the phone and the TFTP server or

Cisco Unified CallManager, the phone cannot start up properly. Ensure that the network is currently running.

Verifying TFTP Server Settings

You can determine the IP address of the TFTP server used by the phone by pressing the Settings button on the phone, choosing Network Configuration, and scrolling to the TFTP Server 1 option.

If you have assigned a static IP address to the phone, you must manually enter a setting for the TFTP Server 1 option. See the “Network Configuration Menu” section on page 4-7.

 

 

Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones

 

 

9-4

 

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Cisco Systems 7970G manual Identifying Error Messages