Communications privacy protection system by replacing calling party number with non-assigned number
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United States of America Patent
Stats
-
Dec 31, 1996
Grant Date -
N/A
app pub date -
Mar 3, 1995
filing date -
Mar 3, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone subscriber of a privacy communications service is allowed to use a randomly selected non-assigned telephone number--instead of the subscriber's real telephone number--as a return phone number in a telephone message left for a called party. The non-assigned, randomly selected telephone number becomes inoperative after a threshold that may be pre-imposed by the subscriber is exceeded. According to a feature of the invention, the function of randomly selecting a non-assigned telephone number may also include replacing the calling party number with the randomly selected number. Hence, when a caller-id display unit receives the telephone number of an incoming call for which the privacy communications service is used, the randomly selected telephone number--as opposed to the real telephone number--is received and recorded by the caller-id display unit.
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