PROBLEM TO BE SOLVED: To provide a conference participant calling system capable of performing not uniform calling to all conference participants but appropriate calling of a frequency matched with a conference participant individual by taking a tardiness result in the past into consideration.;SOLUTION: The conference participant calling system includes a PBX 7, a conference management server 2, the extension telephone terminals 3 and mobile telephone terminals 4 of conference participants, and an extension telephone network 5 and a communication line network 6 connecting them. The conference management server 2 is provided with a calling form determination means for determining a calling form for each conference participant on the basis of information stored in a telephone number DB 221 for individuals and a DB 222 for prior calling for tardiness prevention.;COPYRIGHT: (C)2010,JPO&INPIT
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