The Federal Communication said this in August 2019 in describing the Public Switched Telephone Network (PSTN), also known as analog copper-wire phone lines or plain old telephone service (POTS). POTS is reaching retirement age after a very long run, starting on March 10, 1876, with Alexander Graham Bell famously barking, ?Mr. Watson, come here, I want you,? to his assistant. After almost 150 years, it?s no surprise that other technologies ?primarily mobile networks and voice over internal protocol, or VoIP, phone service? have eliminated the need for POTS infrastructure.