Panasonic GSM900 Manual page 42

Settings
Security
42
Fixed Dial...........................................................................................................................
Fixed Dial is a part of Contacts, but with added security.
When Fixed Dial is enabled:
➢ Only numbers that are in the Fixed Dial Store may be dialled.
➢ Any manually dialled phone numbers must match a number already in the Fixed Dial Store.
➢ A phone number may be stored, edited or deleted. You will be prompted for your PIN2 code.
From Security menu
4 < A
1 Fixed Dial /
4 <
2 Enable or Disable
3 When you select Enable, enter PIN2 code
A
/
A