TELEPHONE SWITCHING SYSTEM

摘要

PURPOSE: A telephone switching system employs a general telephone terminal and an internet telephone terminal at the same time and can communicate with each other. CONSTITUTION: The telephone switching system includes a general telephone accessing part performing accessing of telephone terminals; a switching part converting the telephone terminal's user to the general telephone accessing part; a vocoder part converting a PCM voice signal produced from the telephone terminal into internet data; an internet telephone accessing part performing accessing of internet telephone terminals; and a main control part controlling the overall parts and converting the internet data's transfer protocol.