Citizen Engineer is an online video series about open source hardware, electronics, art and hacking. The first video debuted at "The Last HOPE" conference today in New York City. Volume 1is about phones: SIM card & payphone hacking. Learn how a SIM card works (the small card inside GSM cell phones) make a SIM card reader, view deleted messages, phone book entries and clone/crack a SIM card. 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.