Communication system

This communication system is provided with: an answer phone center; a first portable telephone that registers an answer phone setting in the answer phone center; a second portable telephone with a display unit and an operating unit that makes a call to the first portable telephone; and a telephone c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: TAKEDA KIKUO
Format: Patent
Sprache:eng
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