After careful research I ordered this product only to find it wasn't all I expected.  Our reception is marginal and there is one place in the house where I can make calls, the signal is usually about -102 at this location.  I connected the device and mounted the antenna on the roof where the signal is about -95.  everything seemed to be connected properly and my phone signal actually read as low as -59 with the transmitter touching the phone.  I called customer service several times for help.  They told me that my signal was not strong enough to make the unit work, but if i wanted to trade it in for a more expensive model this might work. This made no sense to me as I could make calls direct from a weaker signal of -102, but the amplifyer won't let me make calls with a signal of -95? I felt they gave me the run-around just so they could sell a more expensive model.