Turning fixed dialing on my mobile phone on or off
If you want to select the numbers your mobile phone can call, you need to turn on fixed dialing. Once done, you can only call the selected numbers and emergency numbers. Follow these easy instructions.
Tap the menu icon.
Tap Settings.
Tap Call.
Tap Fixed Dialing Numbers.
Tap Enable FDN or Disable FDN (depending on the current setting).
