Kyocera 3250 User Manual page 112

The lock code is typically 0000 or the last 4 digits of your phone number.
Select Menu → Settings → Security.
Enter your four-digit lock code and select Lock Code. A message appears:
"Change Code?"
Select Yes and enter a new four-digit code. Enter your new lock code
again.
When your phone is locked, you can call only emergency numbers or Alltel.
You can still receive incoming calls.
Select Menu → Settings → Security.
Enter your four-digit lock code.
Select Lock Phone.
Highlight an option:
– Never—Does not lock the phone.
– On power up—Locks the phone every time you turn it on.
– Now—Locks the phone immediately.
94 Customizing Your Phone