Photo courtesy Túrelio, via Wikimedia Commons. By far the best design podcast around—and one of the best podcasts, period—is Roman Mars’ 99% Invisible. On it he covers design questions large and small ...

This blog presents a short introduction for the history of telephone hacking. It also presents a book called “Exploding the Phone” providing information on how frequency signaling worked, as well as ...

Is the PSTN Still in Use? Yes, but There Are Better Options Your email has been sent Explore the ongoing use of the Public Switched Telephone Network (PSTN) and ...

This simple telephone switching system is designed by Dr. Mustafa Kemal PEKER for training purposes. This simple telephone switching system is designed by Dr. Mustafa Kemal PEKER for training purposes ...

Mark Townsend, Former Director of Bell Labs Electronic Switching Systems, dies at 95. Mark A. Townsend, 95, an electrical engineer with 23 patents who participated in the develop- ment of the ...

A six-line telephone switching system designed for radio talk shows, the Phone In 6. It consists of a desktop Remote Control Panel for call control, and a rackmount Base Console that contains all of ...