I’m Ready to Call It
My best guess is the public switched telephone network will ether be dead or dying by the end of 2030. This doesn’t mean the death of telephone voice service, but the end of the regulated service that has been offered by telephone companies. Any voice products that remain will be delivered using Voice over Internet Protocol. The death of the PSTN is being fostered by the Federal Communications Commission, which has made it much easier for telephone companies to tear down or decommission copper telephone networks.