The following is a Plus Edition article, written by and copyright by Dick Eastman.
This week I improved the use of my AT&T cell phone dramatically. At home, my phone used to display one or two bars of signal strength on the built-in display if I was on the main floor of the house. Usage of the cell phone on the main floor was spotty: it worked most of the time, but I did miss occasional phone calls. When the calls did work, I sometimes experienced unexpected disconnects. I estimate that it worked 90% of the time. I expect a better percentage than that from a telephone service.
Moving upstairs to the second floor provided a major improvement in signal strength. The built-in signal strength indicator on the cell phone usually displayed three to five "bars" of signal strength, and the phone seemed to always work well. Unfortunately, most of the time I spend on the second floor is time I am asleep. I don't talk on the phone much from the upper floor.
When I moved to the basement, nothing worked. The signal strength display typically would show zero bars. I couldn't make or receive cell phone calls. Unfortunately, I spend a fair amount of time in the basement.