I got iPhone 5 and mostly I am happy with it's performance, the only problem is when I try to send texts or make phone call from my working place (area code 33176) at the area I get only most if the times "No service" and for real there is no service. In the other hand, my e-mail service is top of the line every where. My carrier is AT&T. What can I do to correct this problem?
Thank you
GUILLERMO