| 摘要 |
PROBLEM TO BE SOLVED: To provide a relay device and a communication system, capable of originating a telephone call by deducing a calling telephone number from destination information input from radio equipment.SOLUTION: The relay device includes a network interface, a radio equipment interface and a control unit. On receipt of a voice signal having embedded destination information from the radio equipment interface, the control unit deducts a calling telephone number on the basis of the destination information, and generates a calling message having the deducted telephone number as a destination, to transmit to a network through the network interface. |
