PUSH-BUTTEN TELEPHONE DEVICE

PROBLEM TO BE SOLVED: To provide a convenient push-butten telephone device having an inter-system connection function. SOLUTION: The push-butten telephone device 1 is composed of a master set 10 connected to outside lines La-Lm capable of reporting a telephone number such as IP (Internet protcol) li...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OYAMADA MASAKAZU, TANAKA HIRONORI, IKUSHIMA TOSHIZO
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING
Online-Zugang:	Volltext bestellen
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