A communication system includes a server on which there is stored a second device identifier, ID, for a second wireless device and a second user ID associated with a second user; wherein upon the server identifying that the second user ID is stored on a first wireless device, transmitting the second user ID and the second wireless device ID to the first wireless device to allow the first wireless device to associate the second wireless device with the second user; and wherein upon the first wireless device identifying that the second wireless device is within peer to peer communication range of the first wireless device, the first wireless device is arranged to provide an indication that the second wireless device is available for establishing a connection with the first wireless device for communicating with the second user.