Telephone accessory device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 1, 2004
Grant Date -
N/A
app pub date -
Jan 15, 2000
filing date -
Jan 15, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A telephone accessory device includes a first circuit that detects an off-hook condition of a telephone and a second circuit responsive to the first circuit wherein the second circuit simulates an on-hook condition when the off-hook condition is detected.
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