Method of discouraging the completion of wrong-number calls
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United States of America Patent
Stats
-
Nov 1, 1988
Grant Date -
N/A
app pub date -
Mar 3, 1986
filing date -
Mar 3, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of discouraging the completion of certain classes of calls including wrong-number calls. Incoming calls from calling parties not included on a customer-specified screening list are first connected to an appropriate advisory announcement. Such calls are advantageously not extended to the customer station if the calling party disconnects within a specified time of receiving the announcement. To limit the delay of calling parties, the announcement is bypassed for callers included on the screening list and may be quickly interrupted by the transmission of a single, dual tone multifrequency digit from the calling station.
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