ROLL CALL SYSTEM AND ROLL CALL METHOD AND RECORDING MEDIUM AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To quickly realize a roll call without any mistake when any disaster occurs. SOLUTION: Detecting terminals 5a and 5b are allowed to communicate with portable telephone sets 3b and 3e in respective rooms A and B, and to transmit the telephone numbers or the like to a roll call server 2. Thus, the roll call server 2 prepares the list of roll call objects. When a roll call start instruction is issued from a computer 6, the roll call server 2 transmits a mail to each portable telephone set 3a, and receives the reply mail. Then, members whose roll calls have been already made and the other members are specified according to whether or not the roll call server 2 has been able to receive the reply mails.