jelag, I've ran a smoothtalker for over 3 yrs. now, they really work. Some people think that it should help in an area that has no,0, signal, and it won't. It will boost a signal if you have a signal, but if there's nothing there to boost, well , its 0. It boosts incoming and transmit signal.
I have an LG ph. also, #5550, really like the ph. , but the connector for the smoothtalker is hard to get connected right.
Larry