Hi, i play on mac and i've seen others commenting about the phone not working sometimes. i just wanted to give some details about when it happens and how i fix it to possibly help the problem permanently get fixed :) so it's pretty random and it doesn't happen every game. to fix it i just take the game out of full screen click the phone and dial one number and it's all good. sometimes after i fix it'll stop working again but i just do the same thing to fix it and my solution to fixing it has never not worked :))) love the game btw!