It seems to be the fixed camera, until I fix it please play without the fixed camera option.
I tried playing it without the fixed camera, and the phone worked longer this time, but it still won't call after a few times..
Oh that also happened to me if the mouse curser is normal instead of the ace symbol then the phone won't work but you can get the ace cursor easily back by going up or down with your cursor because that's how you lose to Ace in the first place
