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Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
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Chapter
Resetting or Restoring the Cisco Unified IP Phone
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 9-12
• Performing a Factory Reset, page 9-12

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 9-3 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.

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:
• User configuration settings—Reset to default values
• Network setup settings—Reset to default values
• Call histories—Erased
• Locale information—Reset to default values
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.
To perform a factory reset of a phone, you can press the Applications button and choose Admin Settings
> Reset Settings > All.
Alternatively, you can also follow these steps:
Table 9-3 Basic Reset Methods
Operation Performing Explanation
Restart phone Press the Services, Applications, or
Directories button and then press **#**. Resets any user and network setup changes that you
have made, but that the phone has not written to its
Flash memory, to previously saved settings, then
restarts the phone.
Reset Settings To reset settings, press the Applications
button and choose Admin Settings > Reset
Settings > Network.
Resets user and network setup settings to their
default values, and restarts the phone.
To reset the CTL file, press the Applications
button and choose Admin Settings > Reset
Settings > Security.
Resets the CTL file.