Cisco 7921G - Unified Wireless IP Phone VoIP Administration Manual page 9

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Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0
OL-15985-01
Identifying Intermittent Network Outages
Verifying DHCP Settings
Verifying Voice VLAN Configuration
Verifying that the Phones Have Not Been Intentionally Reset
Eliminating DNS or Other Connectivity Errors
Symptom: Audio Problems
No Audio During a Connected Call
One-Way Audio During a Connected Call
Symptom: Improper Roaming and Voice Quality or Lost Connection
Voice Quality Deteriorates While Roaming
Delays in Voice Conversation While Roaming
Phone Loses Connection with Cisco Unified Communications Manager While Roaming
Phone Does Not Roam Back to Preferred Band
Monitoring the Voice Quality of Calls
Using Voice Quality Metrics
Troubleshooting Tips
General Troubleshooting Information
Common Phone Status Messages
Troubleshooting Tips for the Cisco Unified Wireless IP Phone 7921G
Logging Information for Troubleshooting
Using a System Log Server
Using the Trace Logs on the Unified IP Phone
Erasing the Local Configuration
How the Cisco Unified Wireless IP Phone Operates
How to Care for and Clean the Phone
How Users Access the Help System on the Phone
How Users Get Copies of Cisco Unified IP Phone Manuals
How Users Configure Phone Features and Services
How Users Access Voice Messages
Installing the Cisco Unified Communications Manager Locale Installer
Support for International Call Logging
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