Patent ID: 9503910
Filing Date: 2016-11-22
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A relaying device for establishing a communication between one repeater and one of other relaying devices, the repeater connected to the relaying device with a cable and wirelessly communicating an audio signal with one or multiple transceivers in a half-duplex format, the other relaying devices, which are identical to the relaying device and wirelessly communicate with one or multiple transceivers, connected to the relaying device via a network and communicating RTP packets containing the audio signal, comprising: a network interface connected to the network, and receiving/transmitting the RTP packets from/to the another relaying device via the network; a wireless interface connected to the repeater, and receiving/transmitting the audio signal from/to the repeater via the cable; a voice buffer buffering the audio signal; and a control unit detecting a leading packet of the RTP packets and the audio signal from the repeater and having a destination management table that is configured with multiple transceiver IDs and IP addresses of the other relaying devices corresponding to each other, the transceiver IDs being information to be used to determine which one is a designated transceiver among the transceivers and the IP addresses of the other relaying devices being information to be used to determine which one is a designated relaying device among the relaying devices, wherein when receiving and detecting the leading packet of the RTP packets via the network, the control unit after receiving, from the repeater, a reply indicating that the wireless communication channel has been reserved, the control unit reads out the buffered audio signal from the voice buffer and transmits the audio signal to the repeater so as to be transmitted wirelessly to the transceiver, and when receiving and detecting the audio signal that is transmitted from the repeater, the control unit