Disclosed is an image communication terminal including a main processor that controls operation in accordance with image communications, decodes video data, and encodes images photographed through a camera, and a modem processor that processes data in accordance with radio communications, divides image communication data into video and audio data, and encodes voice signals input from a microphone to combine encoded audio data with the video data to transmit them to the communication network. Accordingly, the utility of the main processor is increased and a quantity of communication data between the modem processor and the main processor is reduced. Further, voice quality is provided at an optimal level.