Hey just in case this helps anybody.
I moved a few months ago, and as luck would have it, I moved into a dead cell. The Verizon map says I'm good, but I'm not. My signal strength fluctuates between 1 and 3 bars and sometimes calls get dropped. Voice quality varies from quite good to sucks.
I've called Verizon maybe 1/2 dozen times and they sent someone out to "drive the neighborhood" monitoring signal strength which they say is "marginal". The fix they said is a "Personal Cell Tower - normally $200 but they'd let me have it for $50 as their way of saying thank you for being a loyal customer". (Somehow they didn't think it was funny when I told them if they'd just fix their tower I'd hear the thank you better).
The Personal Cell Tower (it said "Samsung Network Extender" on the box) arrived this morning and I've got a steady 4 bars signal strength and calls sound very good.
Oops, I forgot to say that it requires that you have an empty port on a router that's hooked to your cable modem. I'm guessing here but it seems like it's using your cable modem for "the last mile" and transmitting the connection to your cell phone when it's in range.