Can anyone tell me if it is possible to block data on one of my lines without blocking calling or texting? I have blocked inappropriate materials through my router through Open DNS filters but I have wise guy here who has learned that if he just turns the wi-fi off that the data can still be used to access all of those sites. I know I can restrict the amount of data used but I only want to restrict it for certain time periods and open it back up for safe times. Is this possible? Is like to use time restrictions without blocking and texts or calls at all.