IP Phone User Manual

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Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
OL-11524-01
Chapter 9 Troubleshooting and Maintenance
Resetting or Restoring the Cisco Unified IP Phone
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
• 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 loading the
term70.default.loads file)
Before you perform a factory reset, ensure that the following conditions are met:
• The phone must be on DHCP-enabled network.
• A valid TFTP server must be set in DCHP option 150 or option 66 on the
DHCP server.
• The termxx.default.loads.sip file 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, follow these steps:
Note DHCP must be enabled in your network before you can perform these steps.
Procedure
Step 1 Unplug the power cable from the phone and then plug it 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 orange.
Step 3 Release # and press 123456789*0#.
You can press a key twice in a row, but if you press the keys out of sequence, the
factory reset will not take place.