Importance

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Abstract

A voice communication apparatus that includes gateway modules in a distributed structure to drive a protocol selected by a corresponding terminal in communication with a public telephone network, so as to convert a packet and renew a state variation of a terminal allocated to itself within a group while performing the packet conversion, and a packet switching module to switch to a corresponding port while communicating between a public telephone network and the gateway module or between a LAN and the gateway module. Each module thus co-owns the information by transferring the call signal and voice by the ethernet interface on a network standard, and accordingly, the switching between the PSTN (public switched telephone network) gateway modules is simply performed. This facilitates long-distance communication with an employee, for example, who may telecommute from a remote place, thereby reducing the expense of long-distance communication. The user can be directly connected to the LAN-based voice terminal through the multi-media switch module, or indirectly connected to the LAN-based voice terminal through the general hub or the switch hub allowing for expansion of the capacity.

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First Claim