
Samsung Galaxy S III Mini
Find "Fixed Dialling Numbers"
Press Apps.
Press Phone.
Press the Menu key.
Press Call settings.
Press Additional settings.
Press Fixed Dialling Numbers.
Turn fixed dialling on or off
Press Enable FDN or Disable FDN (depending on the current setting).
Key in your PIN2 (default is 1111) and press OK.
Exit
Press the Home key to return to standby mode.