Ok so i bought a used iphone cheap and never activated t with my sim card but just jailbroke it and unlocked ( not sure if unlocking was necessary as i have AT&T but w/e). So what i wanna know is that if i put my im in and start using the iphone will i be charged the iphone data plan? i ask this because i already have unlimited text and data on my current samsung impression and was hoping i could still use at least the unlimited texting without any extra charges. I called the 611 number and they wouldnt give me a straight answer. So if you guys have any insight i would greatly appreciate it.