Here is another signal booster that helps improve your cell phone reception. The Anntlent Tri-Band Cell Phone Signal Booster is ideal for Verizon, AT&T, and T-Mobile 3G and 4G connections. It enhances your voice and data in offices up to 4500sqft.
This cell phone booster has a directional panel and yagi antennas to extend your signal strength up to 32X. It comes with automatic gain control to save you effort. It supports multiple cell users at the same time.