Troubleshooting and Maintenance
This chapter provides information that can assist you in troubleshooting problems with your Cisco
Unified IP Phone or with your IP telephony network. It also explains how to clean and maintain your
phone.
If you need additional assistance to resolve an issue, see the
Support, and Security Guidelines" section on page
This chapter includes these topics:
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Resolving Startup Problems
After installing a Cisco Unified IP Phone into your network and adding it to Cisco Unified
Communications Manager, the phone should start up as described in the
Process" section on page
troubleshooting information:
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Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
Resolving Startup Problems, page 12-1
Cisco Unified IP Phone Resets Unexpectedly, page 12-6
Troubleshooting Cisco Unified IP Phone Security, page 12-9
General Troubleshooting Tips, page 12-10
Resetting the Cisco Unified IP Phone, page 12-15
Using the Quality Report Tool, page 12-16
Monitoring the Voice Quality of Calls, page 12-16
Where to Go for More Troubleshooting Information, page 12-17
Cleaning the Cisco Unified IP Phone, page 12-17
3-21. If the phone does not start up properly, see the following sections for
Symptom: The Cisco Unified IP Phone Does Not Go Through the Normal Startup Process,
page 12-2
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications
Manager, page 12-2
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address, page 12-6
C H A P T E R
"Obtaining Documentation, Obtaining
xiii.
"Verifying the Phone Startup
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12-1