I have long thought that to take pad I, but then I had decided on this one because I could push a second calling "legally complicated". this detail would have apple revise times until one is ready to get it around the slide to open. My sister has a pad with no calling card, you can only Wi-Fi or via Bluetooth outdoors ... this is annoying, and I've done well with this second card, no matter where I am I come without problems into Internet. otherwise some apple problem, nor anything not quite mature.