This concept phone is designed to be hung up on your door handle like you would with a do not disturb card in a hotel room. When it is hung on the door handle the weight of the phone pulls down on the handle and it starts the phone charging. Also sitting it on a desk will charge the phone too.
Yankodesign suggests a conference call could see them all linked together like a barrel of monkeys. As this is just concept at the moment, I do not think we will see this type of phone be made available.
YankoDesign Via: Fosfor