Cisco 8821

CHAPTER 9
Troubleshooting
•
General Troubleshooting Information, page 111
•
Phone Does Not Go Through the Normal Startup Process, page 113
•
Connection Problems, page 114
•
Phone Reset Problems, page 118
•
Audio Problems, page 120
•
Feature Issues, page 122
•
Roaming and Voice Quality or Lost Connection Problems, page 123
•
Troubleshooting Procedures, page 124
General Troubleshooting Information
The following table provides general troubleshooting information for the wireless IP phone.
Table 19: Wireless IP Phone Troubleshooting Tips
ExplanationSummary
The phone resets when it loses contact with the
Cisco Unified Communications Manager software. This lost connection
can be due to any network connectivity disruption, including access point
problems, switch outages, and switch reboots.
See Phone Reset Problems, on page 118.
Phone is resetting
Sometimes the time or date on the phone is incorrect. The phone gets its
time and date when it registers with Cisco Unified Communications
Manager. Power cycle the phone to reset the time or date.
The time shows in either 12 hour or 24 hour format.
Time on the phone is incorrect
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
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