phone blocking in thailand

[itchybum]

Anyone know if you can and then how, to block a kids phone so that only all numbers in the contact list can call that number and vice versa.

Basically so no wrong or strange numbers will be able to call his phone number.

[joepattaya1961]

Maybe you could try the "call-barring" option.

[Cluey]

Probably requires an expensive smartphone with a fancy parental control app. . .