Hi, I have a blackberry from tmobile from my dad who switched to verizon recently, I would like to know if I can bring in my dad's old blackberry to verizon so I can use it as my new phone even though it was from tmobile when i have verizon service. I also want to know if I can use his blackberry with my existing phone plan. I don't want to have the data plan, I want to stay with my parents family plan and just use the phone for phone calls and texting.. NO DATA Is that possible? Thanks!! if it is possible can i switch phones online?