Loop-back detection using out-of-band signalling
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United States of America Patent
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Jul 7, 1998
Grant Date -
N/A
app pub date -
Mar 30, 1995
filing date -
Mar 30, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method is described for detecting a loopback condition in a trunk. A predetermined bit pattern is inserted in an outgoing channel, and a corresponding incoming channel is continually monitored to detect the presence of the predetermined bit pattern. In this way, premature restoration of faulty circuits can be prevented.
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