Method of discouraging the completion of wrong-number calls

Details Method of discouraging the completion of wrong-number calls Method of discouraging the completion of wrong-number calls

1986-03-03

1988-11-01

Dwyer, James L.

Telephonic communications

Audio message storage, retrieval, or synthesis

379197, 379213, H04M 342

Patent

active

047825081

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.

REFERENCES:
patent: 3111561 (1963-12-01), Dunning
patent: 3436486 (1969-04-01), Stevens
patent: 3573387 (1971-04-01), Nebe
patent: 3673339 (1972-06-01), Korn
patent: 4277649 (1981-07-01), Sheinbein
patent: 4278844 (1981-07-01), Jones
patent: 4376875 (1983-03-01), Beirne
patent: 4393278 (1983-07-01), Miyashi
patent: 4488005 (1984-12-01), Frantz
patent: 4602129 (1986-07-01), Matthews et al.
patent: 4696028 (1987-09-01), Morganstein et al.

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