DEVICE AND METHOD FOR VOICE TRANSMITTING AND VOICE BAND SIGNAL TRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a voice transmitter that can prevent degradation in voice quality and increase in a delay time in a network where voice transmitters adopting different voice compression coding algorithms and mounting different FAX transmission systems are intermingled. SOLUTION: An identification signal insertion means 15 selects an identification signal to be inserted depending on types of a voice transmitter connected via a transmission line and a voice transmitter connected via an exchange so as to select whether a cell received from the transmission line is compression- decoded and returned to a voice band signal or the cell is sent to a relay block as it is without compression decoding of the cell to the voice band signal.