Restart and reset the phone

Restarting your phone can resolve common issues or ensure that new configurations are applied. This process does not erase your existing settings.

To clear your current configuration, you can restore a Cisco Wireless Phone 9821 to its factory default settings. You may choose to reset all values, or specifically reset only the network or security settings.

Restart the phone from the phone menu

1	Access the Settings app.
2	Select Admin settings > Restart and reset.
3	Highlight Restart and press Select.

Restart the phone from the phone administration web page (Unified CM)

You can remote restart your phone to its default settings from the phone administration web page only when your phone is registered to Cisco Unified CM.

1	Access the phone administration web page.
2	From the phone administration web page, select Restart.
3	Click the Restart button to reboot the phone.

Restart the phone to the alternate firmware

You can restart the phone to the previous version of the phone firmware. This allows you to temporarily use the previous firmware load.

When the phone next powers on, it will use the new firmware load.

1	Power off your phone.
2	Press and hold Asterisk (*) , and then press and hold Power/End Call .
3	When the LED changes to red, release the Asterisk (*) and Power/End Call keys. The phone boots to the previous firmware version.

Reset the phone to factory defaults from the phone menu

You can reset the phone to the factory defaults. The phone resets user and network setup settings to their default values and then restarts.

1	Access the Settings app.
2	Select Admin settings > Restart and reset.
3	Highlight Factory reset and press Select.

What to do next

You have lost your current registration and all the configuration after a factory reset. You must register and set up your phone as you do for a new phone before you can use it again.

Reset the phone to factory defaults from the phone keypad

You can reset the phone to factory defaults using the keypad. The phone resets user and network settings to their default values and then restarts.

1	Power off your phone.
2	Press and hold Pound (#) , and then press and hold Power/End Call .
3	When the LED changes to red, release the Pound (#) and Power/End Call keys.
4	Press 1 2 3 4 5 6 7 8 9 * 0 #. If the LED blinks green, the factory reset is in progress. If the LED blinks red, the factory reset was not accepted.

What to do next

You have lost your current registration and all the configuration after a factory reset. You must register and set up your phone as you do for a new phone before you can use it again.

Reset the phone to factory defaults from the phone administration web page (Webex Calling)

You can remotely restore your phone to its default settings from the phone administration web page only when your phone is registered to Webex Calling.

Reset your phone from the phone web page with one of the methods:

In your web browser, enter the URL in the following format and click Confirm Factory Reset.
http://<Phone IP>/admin/factory-reset
where:
Phone IP = the actual IP address of your phone.
/admin = the path to access admin page of your phone.
/factory-reset = the command that you must enter in the phone web page to factory-reset your phone.
An administration access to the phone web page is required to use this method.
1. On the phone administration web page, select Admin Login > Advanced > Info > Debug Info.
2. Click Factory Reset in the Factory Reset section.
3. Click CONFIRM FACTORY RESET on the next page.

What to do next

You have lost your current registration and all the configuration after a factory reset. You must register and set up your phone as you do for a new phone before you can use it again.

Reset the network settings

You can reset the network settings on the phone to the factory defaults. The phone resets network setup settings to their default values and then restarts.

1	Access the Settings app.
2	Select Admin settings > Restart and reset.
3	Highlight Network settings and press Select.

What to do next

You have lost your current network settings. You must set up the network settings again.

Reset the security settings

You can reset the security settings on the phone to the factory defaults. The phone resets security settings to their default values and then restarts.

1	Access the Settings app.
2	Select Admin settings > Restart and reset.
3	Highlight Security settings and press Select.

What to do next

You have lost your current security settings. You must set up the scurity settings again.

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Restart the phone from the phone menu

Restart the phone from the phone administration web page (Unified CM)

Restart the phone to the alternate firmware

Reset the phone to factory defaults from the phone menu

Reset the phone to factory defaults from the phone keypad

Reset the phone to factory defaults from the phone administration web page (Webex Calling)

Reset the network settings

Reset the security settings

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