Airtel — our mobile phones are not reachable all the time

Hi,

I live in pedda karupamula village near peddakothapally mandal.
Our mobile phones are not reachable all the time if we are inside our home.
Every one in our family uses airtel. This is the major problem we are facing.
Some action should be taken because there may be some emergency, if our mobiles are not reachable at that time then it may cause us something bigger.
So please take some action.