AT&T 3 G MicroCell Wireless Signal Booster. It retailed for about $199. When we went in Dale ended up getting a great deal on the new iPhone and I ended up taking his old one - which was still a step up from mine - I previously had an iPhone 4S and now I have his old iPhone 5. He upgraded to the 5S. I ended up getting a SWEET deal on mine for turning it into them...they offered me $200 for it because it was in great shape. They replaced my SIM Card as well which totally made a difference too! So by getting the $200 Gift Card I decided to spend it on the M-Cell Tower. They ordered it from a neighboring store and we picked it up the following Monday Morning. Hubby took it home and hooked it up and we haven't looked back! It's just what we needed! I have 4 to 5 bars of service consistently, now! It's AWESOME!
In short...The AT&T 3G MicroCell device acts like a mini cell tower in your
home, and connects to your existing broadband Internet service. You
receive improved cell signal performance for both voice calls and
cellular data applications like picture messaging and Web surfing.
So far - we haven't had a problem with this at all and based on our current Cell Phone Family Plan it doesn't cost us any additional money per month. It's working like a charm!