7-10
Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)
OL-23874-01
Chapter 7 Troubleshooting and Maintenance
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 7-10
• Performing a Factory Reset, page 7-10

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 7-2 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 configuration settings—Reset to default values
• Call histories—Erased
• Locale information—Reset to default values
• Phone application—Erased (phone recovers by using the image in the inactive partition of flash to
boot up).
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 use the IVR to reset the network settings to factory default
or you can perform the following steps:
Procedure
Step 1 Unplug the power cable from the phone and then plug it back in.
The phone begins its power-up cycle.
Tab l e 7-2 Basic Reset Methods
Operation Performing Explanation
Restart phone Unplug the power cable and plug it back in. 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.
Reset Settings Reset the phone to its factory settings. Resets user and network configuration settings to
their default values, and restarts the phone.