Patent ID: 8000753

Claim:
A hands-free function provision apparatus comprising: a mobile communication terminal for performing transmission/reception of a voice signal via a base station; a ZigBee coordinator for transmitting or receiving a predetermined display signal and a call control signal for establishing a call connection state to/from the mobile communication terminal, modulating or demodulating the predetermined display signal, the call control signal, and the voice signal using a ZigBee protocol, and performing wireless transmission/reception of the modulated or demodulated signals, wherein the mobile communication terminal is connected to the ZigBee coordinator via a serial bus interface, such that the predetermined display signal and the call control signal are communicated between the mobile communication terminal and the ZigBee coordinator via the serial bus interface; and a ZigBee device for performing wireless transmission/reception with the ZigBee coordinator by modulating or demodulating the predetermined display signal, the call control signal, and the voice signal using the ZigBee protocol, and visually providing the predetermined display signal.