It's not just to take signal from outside and put it inside, you can have the whole system outside, and sit the phone near it and you will get more signal.They work well, rather or not you want one of these over a microcell (commonly misrepresented as a "Cell phone booster") is up to the persons needs. They have some other information on them also it seems.Do yo have a clear line of sight to the serving site (the tower)?If you do, you can get the solutions described (booster) but you'll also need a decent YAGI antenna and point it directing to the serving sector on the serving site (point it right at the tower).
His articles have been published on Find The Best.com, where he was a daily writer in the smartphones and tablets section.
I did see that Verizon has a booster for 9, haha, I pay enough for their service, I'm surely not going to pay more! I previously had Verizon, moved to an area with a dead zone, and could not receive or make calls from my home. They checked to see if they had similar complaints on streets around me, discovered they had many, and sent me the booster you're talking about for free. Mildly late to the party but there seems to be some misinformation in this thread, not entirely the poster(s) fault either.
A cell signal repeater or cell phone booster takes the outside signal, and then amplifies it.
Basically a microcell can broadcast a signal further depending on the booster used but on average they do, but it's not using legit cell signal, it's just creating a cell signal from the device, which is then routed through your home internet. No signal areas could be totally dead and zero signal at all however with signal so close to you it's unlikely, when using a signal repeater or booster you don't use your phones antenna.
They generally come with a high gain antenna which can pull signal in much further away than your typical cell phone can.