How to Reset or Restore Cisco Unified IP Phone ?

How to Reset or Restore Cisco Unified IP Phone ?

Cisco Unified IP Phone Reset or Restore

 

There are two general methods for resetting or restoring the Cisco Unified IP Phone.

 

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.

 

The following table 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.


Operation

Performing

Explanation


Restart phone 


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.


Erase softkey


From the Settings menu, unlock phone options (see Unlock and Lock Options). 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 Unlock and Lock Options). Then press the Erase softkey.


Resets network configuration settings to their default values and resets the phone. This method causes DHCP to reconfigure the IP address of the phone.


From the Security Configuration menu, unlock phone options (see Unlock and Lock Options). Then press the Erase softkey.
                       


Deletes the CTL file from the phone and restarts the phone.


Perform 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. The phone recovers by loading the appropriate default load file (term62.default.loads, term61.default.loads, term42.default.loads, or term41.defaults.loads) depending on the phone model.

 

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 DHCP option 150 or option 66 on the DHCP server.
  • The default load file for your phone model and the files specified in that file should be available on the TFTP server that is specified by the DHCP packet.

 

To perform a factory reset of a phone, perform the following steps:

 

Procedure

 

Step 1

Unplug the power cable from the phone and then plug the cable back in.  

 

The phone begins its power-up cycle.

 

Step 2

While the phone is powering up, and before the Speaker button flashes on and off, press and hold #. Continue to hold # until each line button flashes on and off in sequence in amber.

 

Step 3

Release # and press 123456789*0#. You can press a key twice in a row, but if you press the keys out of sequence, the factory reset will not take place.

 

After you press these keys, the line buttons on the phone flash red, and the phone goes through the factory reset process.

 

Do not power down the phone until it completes the factory reset process, and the main screen appears

 

Additional Troubleshooting Information

 

If you have additional questions about troubleshooting the Cisco Unified IP Phones, these Cisco.com websites provide you with more tips.

 

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