Contradictory research: Do face-to-face interactions facilitate anti-social behavior?

A study I read explored the effects that face-to-face interaction had on cell phone use. The study hinted at the idea that the more face-to-face interactions that one had, the more they would use their cell phone. Considering that a lot of research theories say that Internet media use usually facilitates anti-social behavior, I thought it was interesting that this study predicted the inverse, claiming that face-to-face social interactions encourages media use via cell phone. So if both concepts are true, then that means that the more you interaction with people in person, the more you will use your phone. And the more you use your phone, the more anti-social you will become. Talk about a catch 22 situation.