Walkie-talkie with screen to show a list of other walkie-talkies within communication range

摘要

A device, method, and computer program product for identifying and communicating with digital communication devices within a communication range that includes a transmitter configured to transmit a control signal and a voice signal, a receiver configured to receive the control signal and the voice signal, a user interface unit having a display area, and a computational unit configured to control the transmitter to periodically transmit identifying information as the control signal. The control signal is received as remote identifying information by the other digital communication devices within the communication range. The remote identifying information is displayed on the display area of each of the digital communication devices receiving the control signal.