Citizen Engineer, Open Source Hardware Hacking by Ladyada and PT

Citizen Engineer is new video series on open source hardware hacking, art and electronics produced by Limor “Ladyada” Fried of Adafruit Industries and Phillip “PT” Torrone of MAKE magazine. The first episode, featuring cellphone SIM card and payphone hacking, recently debuted at The Last HOPE conference in New York City.

Modify a retired payphone so it can be used as a home telephone and for VoIP (Skype). Then learn how to modify the hacked payphone so it accepts quarters – and lastly, use a Redbox to make “free” phone calls from the modified coin-accepting payphone.