Automatic telephone message interception system
First Claim
1. An automatic telephone message interception system adapted to be coupled in series with a telephone transmission line and a telephone instrument for connecting an incoming telephone call on said transmission line to an information storage means without ringing said telephone instrument, comprisingfirst means, coupled to said transmission line and said telephone instrument, for electrically disconnecting said transmission line from said telephone instrument and normally maintaining said transmission line electrically disconnected from said instrument,second means, coupled to said first means and to said telephone transmission line, for detecting a first coded transmission signal transmitted on said transmission line during an incoming telephone call and connecting said transmission line to said information storage means in response to the detection of said signal, andthird means, coupled to said first means, second means and said transmission line, for detecting a second coded transmission signal transmitted on said transmission line during said incoming telephone call and disconnecting said transmission line from said information storage means in response to the detection of said second signal.
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Accused Products
Abstract
An automatic telephone message interception system which is connected in series between a telephone instrument and incoming telephone lines. The system intercepts an incoming call and, upon the detection of a code signal on the telephone lines, connects the lines to an information storage device without causing the telephone instrument to ring. The system disconnects the storage device from the telephone lines and restores the system to its original condition upon the detection of another code signal on the telephone lines. In the event a code signal is not detected after reception of an incoming call, the system connects the telephone lines to the telephone instrument, which then operates in a normal manner.
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Citations
9 Claims
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1. An automatic telephone message interception system adapted to be coupled in series with a telephone transmission line and a telephone instrument for connecting an incoming telephone call on said transmission line to an information storage means without ringing said telephone instrument, comprising
first means, coupled to said transmission line and said telephone instrument, for electrically disconnecting said transmission line from said telephone instrument and normally maintaining said transmission line electrically disconnected from said instrument, second means, coupled to said first means and to said telephone transmission line, for detecting a first coded transmission signal transmitted on said transmission line during an incoming telephone call and connecting said transmission line to said information storage means in response to the detection of said signal, and third means, coupled to said first means, second means and said transmission line, for detecting a second coded transmission signal transmitted on said transmission line during said incoming telephone call and disconnecting said transmission line from said information storage means in response to the detection of said second signal.
Specification