| 摘要 |
The user is warned to remember to call a person so as not to forget to call for a long time. The system includes a telephone service server (13) that extracts from a communication log the time elapsed from the latest call to a person, extracts from the profile of the person the necessity of maintaining the intimate relationship with the person, multiplying the time by the necessity, and creating a page for warning the user to remember to call, and a telephone (12a) of the user having a display on which the warning is displayed.
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