Digital bypass for telephone system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 20, 1990
Grant Date -
N/A
app pub date -
Nov 9, 1989
filing date -
Nov 9, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital bypass unit for a PBX or ACD telephone system having T1 spans provides the capability to place and answer calls on a digital T1 span in the event of a system failure or power failure. The bypass unit permits the bypass of the failed system, connecting T1 channels directly to digital telephone sets, and is automatically activated in the event of power or system failure. Queueing and distribution of incoming calls are both provided when the system is in the bypass mode.
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