A method includes accessing, at a first user device, an application that coordinates ringing of multiple user devices registered to a smart phone number that are within a predetermined proximity of each other. The method includes broadcasting an identity and a ring state associated with the user device. A presence is to be detected within the predetermined proximity of at least one additional user device associated with the smart phone number. The method includes determining a ringing user device based on predetermined rules of selection between the at least one additional user device and the first user device. The method further includes determining activity to be performed by at least one other user device in event of an incoming call to the smart phone number. The method also includes receiving an incoming call at the smart phone number and ringing the ringing device.