| 摘要 |
PROBLEM TO BE SOLVED: To realize an alarm clock service which is used for all portable telephone sets without being limited to a model of the portable telephone sets and with a high latitude of registered messages. SOLUTION: Upon the receipt of a registration request of alarm information from a portable telephone set 102, a portable telephone network installation 104 connects an alarm clock service ancillary installation 107 to the portable telephone set 102 to set up an alarm information registration call. A user 101 registers a desired date and time for message notice by means of a DTMF signal or the like and a desired message for notice in voice respectively to the alarm clock service ancillary installation 107. When the date and time of notice arrives, the alarm clock service ancillary installation 107 informs the portable telephone set 102 of the registered message via the portable telephone network installation 104 in voice. |
