Here is another cell signal booster that reduces dropped calls and improves your connection at home or place of business. The HiBoost Cell Phone Booster is compatible with AT&T, T-Mobile, and Verizon. It can cover an area of 10000 sq.ft.
This signal booster comes with an app that helps you find the best space for your indoor antenna. It has max gain of 65dB. You can find out more about it here.