Contents
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Cisco Unified IP Phone 7965G and 7945G Administration Guide for Cisco Unified Communications Manager 6.0
OL-12650-01
CHAPTER
9 Troubleshooting and Maintenance 9-1
Resolving Startup Problems 9-2
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process 9-2
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications
Manager 9-3
Identifying Error Messages 9-3
Checking Network Connectivity 9-3
Verifying TFTP Server Settings 9-3
Verifying IP Addressing and Routing 9-4
Verifying DNS Settings 9-4
Verifying Cisco Unified Communications Manager Settings 9-4
Cisco Unified Communications Manager and TFTP Services Are Not Running 9-4
Creating a New Configuration File 9-5
Registering the Phone with Cisco Unified Communications Manager 9-6
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address 9-6
Cisco Unified IP Phone Resets Unexpectedly 9-6
Verifying Physical Connection 9-7
Identifying Intermittent Network Outages 9-7
Verifying DHCP Settings 9-7
Checking Static IP Address Settings 9-7
Verifying Voice VLAN Configuration 9-7
Verifying that the Phones Have Not Been Intentionally Reset 9-8
Eliminating DNS or Other Connectivity Errors 9-8
Checking Power Connection 9-8
Troubleshooting Cisco Unified IP Phone Security 9-9
General Troubleshooting Tips 9-11
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones
Only) 9-15
Resetting or Restoring the Cisco Unified IP Phone 9-15
Performing a Basic Reset 9-15
Performing a Factory Reset 9-16
Using the Quality Report Tool 9-17
Monitoring the Voice Quality of Calls 9-17
Using Voice Quality Metrics 9-18
Troubleshooting Tips 9-19
Where to Go for More Troubleshooting Information 9-19
Cleaning the Cisco Unified IP Phone 9-20
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