PROBLEM TO BE SOLVED: To provide communication with voice using mobile phones, while keeping mutual anonymities.;SOLUTION: The method of providing a nickname telephone service provides nickname communication performing voice communication without notifying actual mobile phone numbers each other from a mobile phone terminal A of a user A to a mobile phone terminal B of an opposite side user B. An alternate number TB, uniquely set to the nickname communication from the user A to the user B, is assigned for demand of the nickname communication from the user A to the user B; at a call from the mobile phone terminal A to the alternate number TB, an alternate number TA, uniquely set to the nickname communication from the user B to the user A, is notified to the mobile phone terminal A; and accordingly, the call from the mobile phone terminal A is received by the mobile phone terminal B.;COPYRIGHT: (C)2009,JPO&INPIT
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