ckhFJ
"Verizon coverage sucks at my house so I have a femtocell or a Verizon Network Extender located in the center core of my house so I have my own mini cell site in my house."
You likely have the best solution as far as the fentocell for now for your situation. The cell companies continually put up new cell towers, but challenges from local governments and property owners to get this done. In airports, arenas (Patriot Center I experienced), other parts of the underground Metrorail where Verizon Wireless coverage, microcells (or similar cell technology) is there. The other challenge is getting it all to work together, especially so the cells do not conflict with each other in a public/commercial area. I remember 12-15 years ago where on a mountain top in Skyline where I could make a call with analog, not sure with digital. Even myself, at my home -- wooded area, ground level, slight valley, no high rises -- is signal of -112 dbm 28 asu, with typically two bars out of five of 4G LTE signal strength (though it fluctuates here and there to one or three bars, outside in the neighborhood it is three bars). I can make and receive calls at home (4G LTE Advanced crystal clear calling) and texts and surf the intenret on my smartphone (though in my home I more often use the laptop). The major carriers now do sell network extenders, probably similar to what you have chKFJ . There is a very good wikipedia article I found on this issue
https://en.wikipedia.org/wiki/Mobile_phone_signal (of course, cellular is just an advanced radio service with many of the benefits and challenges here and there with that). ckhFJ, if I may ask and if you know and wish to share here, what are your dbm/asu values before and after the fentocell? On a droid phone i.e. Samsung, others, go to Settings, About Phone, Status, Signal Strength (on other phones such as the iPhone or basic phones, not sure, but can probably Google it to find out if the information is available on your phone).