1 Find "Fixed Dialling Numbers"
Press Settings.
Press All.
Press More.
Press Call.
Press Fixed Dialling Numbers.
2 Turn on fixed dialling
Press Enable FDN.
Key in your PIN2 and press OK.
3 Turn off fixed dialling
Press Disable FDN to turn off fixed dialling.
Key in your PIN2 and press OK.
4 Return to the home screen
Press the Home key to return to the home screen.