Contents
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Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0
OL11954-01
Registering the Phone with Cisco Unified Communications
Manager
9-8
Cisco Unified IP Phone Resets Unexpectedly 9-9
Verifying Physical Connection 9-9
Identifying Intermittent Network Outages 9-9
Verifying DHCP Settings 9-10
Checking Static IP Address Settings 9-10
Verifying Voice VLAN Configuration 9-10
Verifying that the Phones Have Not Been Intentionally Reset 9-11
Eliminating DNS or Other Connectivity Errors 9-11
Checking Power Connection (SIP Phones Only) 9-12
Troubleshooting Cisco Unified IP Phone Security 9-12
General Troubleshooting Tips 9-16
Resetting or Restoring the Cisco Unified IP Phone 9-22
Performing a Basic Reset 9-22
Performing a Factory Reset 9-23
Using the Quality Report Tool 9-25
Monitoring the Voice Quality of Calls 9-25
Using Voice Quality Metrics 9-26
Troubleshooting Tips 9-27
Where to Go for More Troubleshooting Information 9-29
Cleaning the Cisco Unified IP Phone 9-29
APPENDIX
A Providing Information to Users A-1
How Users Obtain Support for the Cisco Unified IP Phone A-1
Giving Users Access to the User Options Web Pages A-2
How Users Get Copies of Cisco Unified IP Phone Manuals A-2
How Users Subscribe to Services and Configure Phone Features A-3
How Users Access a Voice Messaging System A-3
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