I find it discomforting that T-Mobile’s network has been engineered such that there was a nationwide problem with call-completion today. I spent much of my career as a telecommunications engineer, and one thing we always worked for was redundancy, multiple cable paths, and the like. One point of failure taking our much of the company’s system throughout the U.S. seems like poor design.
Ah well, I’m in my 70s now, and perhaps engineers are taught that cost is primary these days. You kids get off my lawn!!!