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CHAPTER
9-1
Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-23091-01
9
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.
For additional troubleshooting information, see the Using the 79xx Status Information For
Troubleshooting tech note. That document is available to registered Cisco.com users at this URL:
http://www.cisco.com/warp/customer/788/AVVID/telecaster_trouble.html
If you need additional assistance to resolve an issue, see Obtaining Documentation, Obtaining Support,
and Security Guidelines, page -xiii.
This chapter includes these topics:
• Resolving Startup Problems, page 9-1
• Cisco Unified IP Phone Resets Unexpectedly, page 9-6
• Troubleshooting Cisco Unified IP Phone Security, page 9-9
• General Troubleshooting Tips, page 9-10
• General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module, page 9-13
• Resetting or Restoring the Cisco Unified IP Phones, page 9-13
• Using the Quality Report Tool, page 9-15
• Monitoring the Voice Quality of Calls, page 9-15
• Where to Go for More Troubleshooting Information, page 9-17
• Cleaning the Cisco Unified IP Phone, page 9-18
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
Verifying the Phone Startup
Process, page 3-14. If the phone does not start up properly, see the following sections for troubleshooting
information:
• Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process, page 9-2
• Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications
Manager, page 9-2
• Symptom: Cisco Unified IP Phone Unable to Obtain IP Address, page 9-6