ISDN D CHANNEL RESTORATION WITHOUT LOSS OF SIGNALING OR PACKET DATA

A communication switching system has a plurality of switch nodes with each of the switch nodes responsive to a failure of the primary signaling channel that is providing the common signaling channel in a facility access service (FAS) group to immediately switch to the secondary signaling channel of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	BALES, BRUCE M, COLEMAN, FORREST L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION SELECTING TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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