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Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
OL-23091-01
Chapter 9 Troubleshooting and Maintenance
Resetting or Restoring the Cisco Unified IP Phones
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:
• 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#.
Erase softkey From the Settings menu, unlock phone
options (see
Unlocking and Locking Options,
page 4-2). 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
Unlocking and
Locking Options, page 4-2). 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
Unlocking and
Locking Options, page 4-2). Then press the
Erase softkey.
Deletes the CTL file from the phone and restarts the
phone.
Table 9-4 Basic Reset Methods (continued)
Operation Performing Explanation