| 摘要 |
PROBLEM TO BE SOLVED: To make simultaneous calls to lines / terminals of a different type without the need for a particular processor and complicated software. SOLUTION: A master unit 1 groups a plurality of extension terminals 2-1 to 2-i for simultaneous calling and station lines L-1 to L-j and registers the caller group, a plurality of the extension terminals 2-1 to 2-i, and the station lines L-1 to L-j to a caller group table 151 in cross-reference with each other so that a control section 14 references the caller group table 151 to particularize the extension terminals 2-1 to 2-i and the station lines L-1 to L-j in the case of simultaneous calling and applies control with respect to the simultaneous calling to the extension terminals 2-1 to 2-i and the station lines L-1 to L-j. COPYRIGHT: (C)2005,JPO&NCIPI
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