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2.Enter the six-digit security code.

3.Enter the new three-digit lock code you want to use.

4.Press STO . The phone displays ChAngEd to and the new lock code.

5.When you finish, hold down CLR for about 1 second to clear the lock code from the display.

Displaying the Lock Code

If you change your lock code then forget it, you can use your phone’s preset security code (000000) to display the current lock code.

Follow these steps to display the current lock code.

Note: The phone’s display does not change (no characters appear when you press the keys) until you press RCL in Step 3.

1. Press FCN OPER 0 .

2.Enter the six-digit security code.

3.Press RCL . The phone displays LocCode and the cur- rently set three-digit lock code.

4.When you finish, hold down CLR for about 1 second to clear the lock code from the display.

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Radio Shack CT-503 owner manual Displaying the Lock Code