Importance

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Abstract

A telephone rejects an arrival of unwanted e-mails. If the telephone does not have a telephone number of an incoming call in a memory, it counts a ringing time interval of the incoming call. If the ringing time interval is shorter than a predetermined time interval, the telephone stores the telephone number of the incoming call as a telephone number whose incoming call is rejected. When a user inputs a telephone number for calling in the telephone, a telephone number whose incoming call is rejected which corresponds with the inputted telephone number is automatically deleted from the memory section. The telephone number whose incoming call is rejected may be stored in a database connected to a communication network. In that case, a server accesses the database and disconnects the call line coming from the telephone number whose incoming call is rejected.

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First Claim