I have AT&T as my service provider and am looking to upgrade from an original Blackjack to an Epix or Blackjack II. I mainly text and presently don't have a data plan on my phone. My question is if I get the Epix with no internet through AT&T can the phone still use WI-FI in my home and other hotspots? The idea is to save the extra $$ and not have to pay AT&T for the internet when I can use faster WI-FI thats all over...Thank you for your help