TELEPHONE CONNECTION METHOD, COMMUNICATION CONTROLLER, CALL AGENT SERVER, TELEPHONE CONNECTION SYSTEM, COMMUNICATION CONTROL PROGRAM, AND COMMUNICATION PROGRAM

摘要

PPROBLEM TO BE SOLVED: To improve the completion rate of a telephone call even when originated calls are concentrated at the time of a disaster or the like. PSOLUTION: A call agent server 7 accepts reservation information of a preferential call transmitted from a telephone set 2, registers the reservation information in a telephone reservation database and calls the telephone set 2 of a call originating telephone number on the date and time indicated in this reservation information. When it is detected that the called telephone set 2 is off-hooked, a called destination telephone number indicated in the reservation information of the telephone set 2 is then called. At such a time, a communication controller 3, 5 connect the call origination as a preferential call even when calling is made to a telephone number (telephone number of a telephone set 4) regulated to be called in a call regulated telephone number database. PCOPYRIGHT: (C)2007,JPO&INPIT