TWO-WAY COMMUNICATION SYSTEM, COMMUNICATION INSTRUMENT, AND COMMUNICATION CONTROL METHOD

摘要

Communications from a transmission side to a reception side neither changing the format of voice code data nor requiring another transmission path or increasing the transmission quantity of control information are controlled utilizing information obtained on the reception side. A system includes a first communication equipment (1) provided with a control information embedding unit (3) for embedding control information that is used for a control of communications from a communication partner to the own communication equipment (1) and that is obtained on the own communication equipment (1) side in the communication data to be transmitted to the communication partner side and a second communication equipment (2) provided with a communication control unit (4) for controlling communications to the first communication equipment (1) side using control information transmitted from the first communication equipment (1).