Hi It's an iPhone 4S. The texts have been to maybe 6 different people Bt they're all problematic. I can't make calls either to any numbers. It doesn't matter whereabouts I am. Overnight I'll receive texts from about 5/6 hours earlier. Sometimes the text sends if I try lots of times and when I turn 3G on they'll send but only for the first minute then I have to turn the 3G on and off again.