I am facing big signal problems. The signal outside my house is strong. It shows full 5 signal bars. But as soon as I enter my house the signal drops to 1 bar and it keeps coming and going. Due to this my battery drains in almost 12 hours if I keep my phone in my room continuously. Also the signal comes very intermittently, so that most of the times my phone is shown as unreachable if someone tries to connect. Is there some way to boost the signal inside a house if signal is strong outside? Any suggestions.