I unlocked my iphone 2g to 2.0 and it has wap.voicestream.com in the apn for cellular data plan, is there a reason that my EDGE is not working, and that anytime i go to an application it says "Could no activate cellular data network"? I had blackberry plan, but called tmobile to switch to all internet package. Should I call tmobile about this? If i do, what phone should i tell them i have?