Find "FDN Phone List"
Press Connect.
Press the Menu key.
Scroll to Options and press the Navigation key.
Scroll to FDN Phone List and press the Navigation key.
Turn fixed dialling on or off
Press the Menu key.
Scroll to Enable FDN Mode or Disable FDN Mode (depending on the current setting) and press the Navigation key.
Key in your PIN2 (default is 1111) and press the Navigation key.
Exit
Press Disconnect to return to standby mode.