Asynchronous transmission mode switch and control method of the asynchronous transmission mode switch
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United States of America Patent
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-
Jun 4, 2002
Grant Date -
N/A
app pub date -
Oct 13, 1998
filing date -
Feb 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ATM switch comprises a detector that detects impairments in signal lines, and a controller that controls the preservation of paths that have been established by call control via a signal line when an impairment has been detected on a signal line by the detector. When an impairment has occurred only on a signal line, interruptions in communications services are prevented by causing the data line paths to be preserved rather than released.
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