| 摘要 |
PROBLEM TO BE SOLVED: To avoid accompanying problems, including an increase in the space for telephone numbers and related expenses caused by obtaining a plurality of telephone numbers in using the plurality of telephone numbers by classifying the plurality of telephone numbers into business telephone numbers and private telephone numbers, the revision procedure of a contract accompanied by the cumbersome operation procedure of related devices, labor and time required for accompanying various procedure expenses, a notice for number change, costs, or the like. SOLUTION: A call is made through the equipment of a dedicated telephone number center without using information on an existing private dedicated telephone number applied to the subscription of a contractor or by assigning in parallel with the existing private dedicated telephone number information or separately a telephone number corresponding to a second telephone number for a subscriber. COPYRIGHT: (C)2004,JPO
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