Selective telephone blocker with timer

Details Selective telephone blocker with timer Selective telephone blocker with timer

2011-06-07

2011-06-07

Deane, William J (Department: 2614)

Telephonic communications

Special services

Call blocking

C379S373010

Reexamination Certificate

active

07957515

ABSTRACT:
Disclosed is a selective telephone call blocker, preferably with timer. The user preferably sets the current time and one or more beginning and ending time periods during which the call block feature is active. The user then selects, one or more codes, such as two letter or number code(s). During the period of time in which the call block feature is active the device will automatically ask the caller to enter the code in order for the call to be completed. If the correct code is entered within a preset time period the call will be transmitted to the telephone or answering machine. If an incorrect code or no code is entered, the invention preferably repeats the request for correct code entry. If within a next preset time period the correct code is not entered the call will be disconnected. Preferably, the call block feature is not operational if the receiving phone is in use. In this case, the calling party will get a busy signal if the receiving party does not have a call waiting feature. If the receiving party does have a call waiting feature, then it is the option of the receiving party to acknowledge the receipt of the telephone call. The device is compatible with existing telephone devices and can be connected between the standard telephone wall outlet and a telephone set with or without an answering machine. Alternatively, the blocker can be connected at the portion of the phone line before the phone line diverges into multiple lines.

REFERENCES:
patent: 4266098 (1981-05-01), Novak
patent: 4821312 (1989-04-01), Horton et al.
patent: 4850013 (1989-07-01), Rose
patent: 4924496 (1990-05-01), Figa et al.
patent: 5467388 (1995-11-01), Redd, Jr. et al.
patent: 5604791 (1997-02-01), Lee
patent: 6298122 (2001-10-01), Horne

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