Chapter 9 Troubleshooting and Maintenance
Resolving Startup Problems
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Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager
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• Cisco Unified CallManager and TFTP Services Are Not Running, page 9-6
• Creating a New Configuration File, page 9-7
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 7-8 for instructions about accessing
status messages and for a list of potential errors, their explanations, and their
solutions.
Registering the Phone with Cisco Unified CallManager
A Cisco Unified IP Phone can register with a Cisco Unified CallManager server
only if the phone has been added to the server or if auto-registration is enabled.
Review the information and procedures in the “Adding Phones to the
Cisco Unified CallManager Database” section on page 2-11 to ensure that the
phone has been added to the Cisco Unified CallManager database.
To verify that the phone is in the Cisco Unified CallManager database, choose
Device > Find from Cisco Unified CallManager Administration to search for the
phone based on its MAC Address. For information about determining a MAC
address, see the “Determining the MAC Address of a Cisco Unified IP Phone”
section on page 2-15.
If the phone is already in the Cisco Unified CallManager database, its
configuration file may be damaged. See the “Creating a New Configuration File”
section on page 9-7 for assistance.
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.
