| 摘要 |
PROBLEM TO BE SOLVED: To provide a safety confirmation system, with which a device installed in the member house of a service applicant is equal with an ordinary telephone set, the cost of the entire system is low and further, labor for a member to connect the device to a telephone line is not required. SOLUTION: After the lapse of fixed time (24 hours, for example), set inside a program for safety confirmation system stored in a telephone set 104 (step 202), it is discriminated whether any operation is manually performed within fixed time or not (step 204). When there is the operation, a timer is started again (step 203). When there is no operation, a call is automatically originated to a host machine 101 (step 206). When a response from the host machine 101 is detected (step 208), a member ID is sent by a DTMF signal (step 210) and the line is disconnected (step 212).
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