How do I restrict incoming and outgoing calls to only numbers on contact list?

[AC Question]

I want to restrict incoming and outoging calls to only numbers on contact list

I have a Motorola G (2nd Generation) . I would like to do it by device; but if not, by app would do.

 

[B. Diddy]

Re: I want to restrict incoming and outoging calls to only numbers on contact list

Welcome to Android Central! Try Call Control.