As I already said, why do u need it?Ok, I tried incoming call barring. It works. After activating incoming call barring, when I called my number it said, "Number is NOT accepting calls"There is one condition though, incoming call barring does not work if u have call divert activated. Most Vodafone numbers have "out of reach, call divert" activated for miss call alerts.So if u want to bar incoming calls, first disable all call diverts and then it will work.