The Pi Phone HD
This hack takes an old 1960s phone and combines the power of the Raspberry Pi to produce a retro smart phone. Each number is assigned to a function, for example dial 3 to hear the current time, dial 1 for the latest news headlines or dial 0 to power off the Pi Phone. For the Easter Egg, check out 6 minutes 29 seconds! More details here: https://www.hackster.io/TeCoEd/the-pi-phone-9da144