| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio call system that enables a remote area and a portable radio communication device to make a call via relay by satellite communication.SOLUTION: A call system performs a call between a fixed station and a mobile station via a relay station. The fixed station includes a fixed station telephone device for performing communication with the relay station via satellite communication by IP phone. The relay station includes: a relay station telephone device for performing communication with the fixed station via satellite communication by IP phone; a radio communication device for performing radio communication with the mobile station by a simplex communication system; and an adapter device for connecting the relay station telephone device and the radio communication device. The adapter device performs control to transmit voice received from the fixed station telephone device by the relay station telephone device to the mobile station from the radio communication device, and to transmit voice received from the mobile station by the radio communication device to the fixed station telephone device from the relay station telephone device. |
