About A Cell Phone Booster

With weak signal, my phones always comes up some problems such as drop calls, limited uses. It is no use to change a new one. I heard that a cell phone signal booster can amplify the cell phone signal. I think it can help my family and me to overcome the dropped calls and other weak signal problems.So I want to install a cell phone signal booster in my home.

Thus, I can keep in touch with my son freely.

How do you think about a cell phone signal booster?