Remote controller and communication combined use digital broadcasting tranceiver for performing voice or image communication, method and system therefor

A remote controller enabling a video/audio communication, and a digital broadcasting receiving device having a communication function are provided to perform communication using short distance communication in the remote controller and a communication function in the digital broadcasting receiving device. A remote controller has an audio/video communication function, and a digital broadcasting receiving device has a communication function(130). The digital broadcasting receiving device receives an audio/video signal using a wired or wireless network(120), and outputs digital data by receiving digital broadcasting from a contents providing part(110). The remote controller converts the remote controller audio output path into the remote controller local area network output in the outside audio output in case it has the signal input of the special key requesting the call, and outputs only the speech signal after receiving the voice or the video call signal from the digital broadcasting receiving device.