ISDN D channel restoration without loss of signaling or packet data

A communication switching system has a plurality of switch nodes each of which is responsive to a failure of the primary signaling channel (421) providing the common signaling channel in a facility access service (FAS) group to immediately switch to the secondary signaling channel (420) of the FAS g...

Ausführliche Beschreibung

Bibliographische Detailangaben

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