| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that it is difficult to switch a case where a user wants to call a specific voice communication terminal and a case where the user wants to call a plurality of voice communication terminal because a telephone number representative of a plurality of terminals is assigned or the same telephone number is assigned to the plurality of terminals while requiring the telephone number to be registered beforehand in an exchange in order to communicate to the plurality of voice communication terminals in the conventional circuit switched network. SOLUTION: A broadcast means of the packet switching network is used to facilitate switching of calling processing only to a specific voice communication terminal and calling processing to a plurality of voice communication terminals including the specific voice communication terminal. COPYRIGHT: (C)2005,JPO&NCIPI
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