Multi-functional communication terminal device and communication relay device for use in noise environment

摘要

Disclosed herein is a multi-functional communication terminal device and communication relay device for use in a noise environment. To this end, the present invention provides a multi-functional communication terminal device for use in a noise environment, comprising: a cellular phone which is hand-carried by each individual worker within a company; an authentication means installed in the cellular phone for transmitting a predetermined code to the multi-functional communication relay device according to claim 1 to receive authentication for a registration of information about the cellular phone from the multi-functional communication relay device; and a communication terminal device mounted on the worker's ear, wherein the communication terminal device includes: a short-range communication means for enabling shot-range communication with the cellular phone; a speech recognition means for recognizing a speech of the worker and converting the recognized speech into character data; and a microphone for receiving a speech of the worker and a speaker for outputting a speech of a counterpart worker or music to the worker.