System for selectively answering a telephone

Details System for selectively answering a telephone System for selectively answering a telephone

2006-12-12

2006-12-12

Feild, Joseph (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S462000, C455S555000, C455S554200

Reexamination Certificate

active

07149525

ABSTRACT:
A system to selectively answer a telephone is disclosed and includes a stationary unit connectable in line with a telephone line extending to the telephone. The stationary unit includes: a first antenna coupled to a first transmitter-receiver to communicate with a portable unit that includes a second antenna coupled to a second transmitter-receiver; a switching circuit to seize the telephone line after receiving a signal received from a first activatable switch of the portable unit, from a second activatable switch of the portable unit, or any combination thereof; and an autodialer circuit to dial a pre-programmed telephone number in response to a signal received from the second activatable switch of the portable unit. The stationary unit receives verbal communications from the portable unit and transmits the verbal communications via the telephone line after the telephone line is seized. At least one of the stationary unit and the portable unit includes a counter-timer circuit to restrictively permit activation of the autodialer circuit when the second activatable switch is activated a number of times within a time period.

REFERENCES:
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patent: 5559860 (1996-09-01), Mizikovsky
patent: 5598460 (1997-01-01), Tendler
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patent: 5787360 (1998-07-01), Johnston et al.
patent: 6240181 (2001-05-01), Tunstall
patent: 6483897 (2002-11-01), Millrod
patent: 7072659 (2006-07-01), White, Jr.

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