Cisco 7975G Administration Manual page 9

Troubleshooting and Maintenance
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C H A P T E R
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Resolving Startup Problems
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications
Manager
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Identifying Error Messages
Checking Network Connectivity
Verifying TFTP Server Settings
Verifying IP Addressing and Routing
Verifying DNS Settings
Verifying Cisco Unified Communications Manager Settings
Cisco Unified Communications Manager and TFTP Services Are Not Running
Creating a New Configuration File
Registering the Phone with Cisco Unified Communications Manager
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address
Cisco Unified IP Phone Resets Unexpectedly
Verifying Physical Connection
Identifying Intermittent Network Outages
Verifying DHCP Settings
Checking Static IP Address Settings
Verifying Voice VLAN Configuration
Verifying that the Phones Have Not Been Intentionally Reset
Eliminating DNS or Other Connectivity Errors
Checking Power Connection
Troubleshooting Cisco Unified IP Phone Security
General Troubleshooting Tips
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones
Only)
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Resetting or Restoring the Cisco Unified IP Phone
Performing a Basic Reset
Performing a Factory Reset
Using the Quality Report Tool
Monitoring the Voice Quality of Calls
Using Voice Quality Metrics
Troubleshooting Tips
Where to Go for More Troubleshooting Information
Cleaning the Cisco Unified IP Phone
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.0
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