System and method for programmable telephone subscriber line test in ring mode
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United States of America Patent
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-
Nov 7, 2000
Issued Date -
N/A
app pub date -
Jun 20, 1997
filing date -
Jun 20, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A system and method for providing software-implemented, programmable testing of telephone subscriber line power conditions during ring mode. A user-controlled fault detection system for detecting subscriber line faults, including resistive faults and foreign voltages, on a telephone subscriber line during ring mode is provided. A user interface is provided to enter user-programmable threshold values corresponding to subscriber ring mode line fault conditions. A fault threshold memory, coupled to the user interface, is provided to store the generated threshold values. A current level detector identifies a ring mode current during ringing on the telephone subscriber line. A processing unit is configured and arranged to compare the ring mode current on the telephone subscriber line to the generated threshold values stored in the fault threshold memory. A fault is identified in response to the comparison.
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