Cisco 6921

Contents
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Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-24567-01
Configuring a Custom Phone Ring 6-3
Configuring the Idle Display 6-4
Automatically Disabling the Cisco Unified IP Phone Backlight 6-4
CHAPTER 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone 7-1
Model Information Screen 7-1
Status Menu 7-2
Status Messages Screen 7-2
Network Statistics Screen 7-6
Call Statistics Screen 7-8
Security Configuration 7-10
CHAPTER 8 Monitoring the Cisco Unified IP Phone Remotely 8-1
Accessing the Web Page for a Phone 8-2
Disabling and Enabling Web Page Access 8-3
Device Information 8-3
Network Setup 8-4
Network Statistics 8-8
Device Logs 8-10
Streaming Statistics 8-10
CHAPTER 9 Troubleshooting and Maintenance 9-1
Resolving Startup Problems 9-1
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process 9-2
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications
Manager
9-2
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address 9-5
Symptom: The Cisco Unified IP Phone Displays the Message Security Error 9-6
Cisco Unified IP Phone Resets Unexpectedly 9-6
Verifying the Physical Connection 9-6
Identifying Intermittent Network Outages 9-6
Verifying DHCP Settings 9-7
Checking Static IP Address Settings 9-7
Verifying the Voice VLAN Configuration 9-7
Verifying that the Phones Have Not Been Intentionally Reset 9-7
Eliminating DNS or Other Connectivity Errors 9-7
Checking Power Connection 9-8
Troubleshooting Cisco Unified IP Phone Security 9-8