I just finished installing a cell phone signal booster in my home. I am not affiliated with the manufacturer and I am not making any money by recommending this device. I just want to help brothers who live in rural areas or in buildings and struggle very poor cell phone reception. The device is not cheap at $370; but after reading negative or so-so reviews for similar products made by other companies (priced in the range of $150-$250) I decided to go with the most expensive one that also had the best reviews. Here is the link to the Amazon.com product page: [ame="http://www.amazon.com/Wilson-Electronics-Adjustable-In-building-Directional/dp/B003NQ2GSW/"]Amazon.com: Wilson Electronics DB Pro 65 dB Adjustable Gain 800/1900MHz In-building Wireless Smart Technology IITM Signal Booster Kit with Directional Wide Band Yagi and Panel Antenna for Home or Office.: Cell Phones & [email protected]@[email protected]@http://ecx.images-amazon.com/images/I/[email protected]@[email protected]@41CyJzH5V0L[/ame] And here is my product review: Just a final observation: this cell phone signal booster will not work if you live in an area with no signal at all. In order to amplify the signal the booster antenna needs to pick it up first, as weak as it may be. If there is no signal at all, it will not have anything to amplify.