10-09-2012 06:35 PM
It could be an issue with where you are, as in are you in the basement of your house or are you in an area with low signal strength? You should find out from your carrier if there are any issues with their signal in the area where you're located. If they say no, make sure you're not underground. Beyond that, the best solution is a battery pull or download an app from App World that will boost your cell signal.
I hope that helps you.