Hello all, I have to go away for some medical treatment for a while. I have received someone's old original iPhone and would like to use it on AT&T. I tried a sim card switch and it wanted to be hooked up to itunes and start as a new activation. I already have a plan, and an old razr phone that I wish to replace with this phone, and just want to get this thing ready to go so I can use it at any time, but I don't really want or need a new activation. Can anyone help me out here? Many thanks in advance.