Cisco Systems 7970G manual Performing a Factory Reset, Procedure

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.

Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones

OL-11524-01 9-19