Cisco 7975G Administration Guide - Page 171

Chapter 9 Troubleshooting and Maintenance Resetting or Restoring the Cisco Unified IP Phone 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 9-4 describes the ways to perform a basic reset. You can reset a phone with any of these operations any time after the phone has started up. Choose the operation that is appropriate for your situation. Table 9-4 Basic Reset Methods Operation Restart phone Erase softkey Performing Explanation From the Main screen, press Settings to displays the Settings menu, then press **#**. Note This basic reset sequence also works from any other screen that does not accept user input. 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 Settings menu, unlock phone options (see the "Unlocking and Locking Options" section on page 4-3). Then press the Erase softkey. Resets user and network configuration settings to their default values, deletes the CTL file from the phone, and restarts the phone. From the Network Configuration menu, unlock phone options (see the "Unlocking and Locking Options" section on page 4-3). The press the Erase softkey. Resets network configuration settings to their default values and resets the phone. (This method causes DHCP reconfigure the IP address of the phone.) From the Security Configuration menu, unlock phone options (see the "Unlocking and Locking Options" section on page 4-3). Then press the Erase softkey. Deletes the CTL file from the phone and restarts the phone. Performing a Factory Reset When you perform a factory reset of the Cisco Unified IP Phone, the following information is erased or reset to its default value: • CTL file-Erased • LSC-Erased • User configuration settings-Reset to default values • Network configuration settings-Reset to default values • Call histories-Erased • Locale information-Reset to default values • Phone application-Erased (phone recovers by loading the term75.default.loads file) Before you perform a factory reset, ensure that the following conditions are met: • The phone must be on a DHCP-enabled network. • A valid TFTP server must be set in DCHP option 150 or option 66 on the DHCP server. • The term75.default.loads file and the files specified in that file should be available on the TFTP server that is specified by the DHCP packet. OL-14640-01 Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.1 9-15