Apparatus and method for automatically blocking the transmission of identifying information concerning a telephone calling party
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United States of America Patent
Stats
-
Jun 20, 1995
Issued Date -
N/A
app pub date -
Jan 24, 1994
filing date -
Sep 23, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An automatic circuit for blocking the transmission of identifying information of a telephone calling party. The automatic circuit has an electronic circuit to detect a telephone off-hook condition. An automatic dialer is also provided and has an input which is connected to the output of the electronic circuit. The automatic dialer is set to dial a predetermined code when the electronic circuit senses the actuation of the detector which detects the off-hook condition. When the predetermined code is received by the computer of the telephone company, it will automatically block the transmission of information which identifies the calling party, and more specifically, the telephone number of the calling party. The off-hook condition detector may be an off-hook switch or a voltage comparator, and other arrangements are foreseeable to detect such off-hook condition.
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