History of the Telephone Infographic
As a guy with a passing interest in telecommunications and the history thereof, I found this neat infographic showing the history of telephone service. Sadly it misses a few things, such as the barbed wire phone systems I discussed on PhoneBoy Speaks Episode 1050. I'm glad it acknowledged the first smartphone: The Nokia Communicator. I owned several of its predecessors.
Of course, these days, "phone calls" are just an application over different networks. It almost seems weird to call my pocket supercomputer a "phone."