if I install a signal booster what effect I'll get?

[AndyWoods1900]

As we all know, the mobile phone brings great conveniences to people. But now, there is a big problem for me. I live in a building with littel mobile phone signal. When I go home, I couldn't get calls and dial-out.
My friends suggests me to install a cell phone signal booster. But I heard many people discuss this problem. Now I want to know if I install a signal booster what effect I'll get?

[Dodger]

Yes you get some extra strength in your network signal with the help of this. And regarding what the people talking, you must know that there is no guarantee for any electronic items. If it works, it works great, and if not it gives you problem. Anyways, for more information on using Signal Booster, check this:
Boost your Cell-Phone Signal in low signal Zone

If you are using Android mobile, check this:
External signal booster for android