TELEPHONE SYSTEM PROVIDED WITH CALL TIME SERVICE FUNCTION

PURPOSE:To remarkably reduce an operator's burden by simply, quickly and efficiently setting a call time related to plural extension telephone sets. CONSTITUTION:A centralized receiving device DSS provided with a DSS key and its pilot lamp, respectively corresponding to plural extension telepho...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	MASUOKA NORIO
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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