Cisco 6921 Administration Guide - Page 124

Resetting or Restoring the Cisco Unified IP Phone Chapter 9 Troubleshooting and Maintenance Table 9-1 Cisco Unified IP Phone Troubleshooting (continued) Summary Phone call cannot be established Explanation The phone does not have a DHCP IP address, is unable to register to Cisco Unified Communications Manager, and shows a Configuring IP or Registering message. Verify the following: 1. The Ethernet cable is attached. 2. The Cisco CallManager service is running on the Cisco Unified Communications Manager server. 3. Both phones are registered to the same Cisco Unified Communications Manager. 4. Audio server debug and capture logs are enabled for both phones. If needed, enable Java debug. Resetting or Restoring the Cisco Unified IP Phone There are two general methods for resetting or restoring the Cisco Unified IP Phone: • Performing a Basic Reset, page 9-10 • Performing a Factory Reset, page 9-11 Performing a Basic Reset Performing a basic reset of a Cisco Unified IP Phone provides a way to recover if the phone experiences an error and provides a way to reset or restore various configuration and security settings. Table 9-2 describes the ways to perform a basic reset. You can reset a phone with any of these operations after the phone has started up. Choose the operation that is appropriate for your situation. Table 9-2 Basic Reset Methods Operation Restart phone Reset Settings Performing Explanation Press the Services, Settings, or Directories button and then press **#**. Resets any user and network configuration changes that you have made, but that the phone has not written to its Flash memory, to previously saved settings, then restarts the phone. From the Admin Settings menu, unlock phone options (see the "Unlocking and Locking Options" section on page 4-3), then choose Reset Settings > All Settings. Resets user and network configuration settings to their default values, and restarts the phone. From the Admin Settings menu, unlock phone options (see the "Unlocking and Locking Options" section on page 4-3), then choose Reset Settings > Network Settings. Resets network configuration settings to their default values and resets the phone. (This method causes DHCP to reconfigure the IP address of the phone.) 9-10 Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP) OL-19025-01