Chapter9 Troubleshooting and Maintenance
Resetting or Restoring the Cisco Unified IP Phone
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Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
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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 any time after the phone has started up. Choose the
operation that is appropriate for your situation.
Table9-3 Basic Reset Methods
Operation Performing Explanation
Restart phone From the Main screen, press Settings
to displays the Settings menu, then
press **#**.
Note This factory reset sequence
also works from any other
screen that does not accept
user input.
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 the “Unlocking
and Locking Options” section on
page 4-4). 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 the
“Unlocking and Locking Options”
section on page 4-4). The press the
Erase softkey.
Resets network configuration settings
to their default values and resets the
phone. (This method causes DHCP
reconfigure the IP address of the
phone.)
From the Security Configuration
menu, unlock phone options (see the
“Unlocking and Locking Options”
section on page 4-4). Then press the
Erase softkey.
Deletes the CTL file from the phone
and restarts the phone.