Gateway unit

Details Gateway unit Gateway unit

H - Electricity

04

L

H04L 12/66 (2006.01) H04M 11/06 (2006.01) H04Q 3/64 (2006.01)

Patent

CA 2518871

A gateway unit for mutually connecting subscriber network, public switched telephone network (PSTN) and packet communication network, comprising subscriber network interface connected to subscriber network, PSTN interface connected to line exchange network, exchange unit exchange-connecting communication path among subscriber network, PSTN and packet communication network, control unit controlling connecting state of communication path at exchange unit, signal conversion unit converting form of signal transmitted and received between exchange unit and packet communication network into forms suitable for communication protocol of packet communication network and communication protocol of subscriber network, respectively, switching unit for route-controlling to transmit signal which is output from signal conversion unit toward destination in packet communication network, and information communication unit mediating information communications among subscriber network interface, PSTN interface, control unit, signal conversion unit and switching unit by using general-purpose local area network (LAN).

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