Cisco Systems 8961 manual Resetting the Cisco Unified IP Phone, Performing Explanation, 12-15

Chapter 12 Troubleshooting and Maintenance

Resetting the Cisco Unified IP Phone

Resetting the Cisco Unified IP Phone

Performing a 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 12-3describes the types of resets you can perform. 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 12-3		Basic Reset Methods
	Operation		Performing	Explanation
	Reset Settings		From the Administrator Settings menu,	Resets user and network configuration settings to their
			unlock phone options (see the “Unlocking and	factory-default values, and restarts the phone.
			Locking Options” section on page 7-3), then	Before you perform a factory reset, ensure that the
			choose Reset Settings > All Settings.
				following conditions are met:
				• The phone must be on a DHCP-enabled network.
				• A valid TFTP server must be set in DHCP option 150
				or option 66 on the DHCP server.
				The following occurs on the phone when you perform a
				reset:
				• User configuration settings—Resets to default values
				• Network configuration settings—Resets to default
				values
				• Call histories—Gets erased
				• Locale information—Resets to default values
				• Phone application—Gets erased (phone recovers by
				using the image in the inactive partition of flash to
				boot up).
				• Security settings—Resets to default values; this
				includes deleting the CTL file, deleting the MD5
				secret, and changing the 802.1x Device
				Authentication parameter to “Disabled.”
				Note Do not power down the phone until it completes
				the factory reset process, and the main screen
				appears.
			From the Admin Settings menu, unlock phone	Resets network configuration settings to their default
			options (see the “Unlocking and Locking	values and resets the phone. (This method causes DHCP to
			Options” section on page 7-3), then choose	reconfigure the IP address of the phone.)
			Reset Settings > Network Settings.
			From the Administrator Settings menu,	Resets any user and network configuration changes that
			unlock phone options (see the “Unlocking and	you have made, but that the phone has not written to its
			Locking Options” section on page 7-3), then	Flash memory, to previously saved settings.
			choose Reset Settings > Reset Device.
			From the Administrator Settings menu,	Deletes only the CTL file.
			unlock phone options (see the “Unlocking and
			Locking Options” section on page 7-3), then
			choose Reset Settings > Security Settings.
			Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 8.5 (SIP)
	OL-20861-01				12-15