iPhone 4s Bad recpetion

[Rumdada]

I recently got an iPhone 4s i use to have a 4 and had trouble with dropping calls etc then I got a bumper case and it seemed to fix the problem. Now my 4s is giving me kind of a similar problem, when in my house i cannot get recption and i keep dropping calls. I never had a problem with my skyrocket in there before is there anything i could do ? Thanks in advanced for your help !

 

[seneca18]

You may take it in to the apple store to see if there is an issue with the phone. If not, contact your cell provider about getting a cell reception booster.