Digital private branch exchange with direct internal switching

The present invention relates to a digital private branch exchange with direct internal switching. This digital private branch exchange with direct internal switching comprises an automatic exchange linked to the public network and connected by a signalling channel at least to the digital terminals...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEPENVEN DUVAL, BRIGITTE, HANSER, PIERRE, KLEIBER, FREDERIC
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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