Telephonic communications – Supervisory or control line signaling – Substation originated
Patent
1994-04-21
1995-08-08
Dwyer, James L.
Telephonic communications
Supervisory or control line signaling
Substation originated
379354, 379356, 379357, 379216, H04M 127
Patent
active
054406277
ABSTRACT:
A secure telephone/computer combination which permits the computer to make automated dialing of a telephone by communicating signals to the interconnection between the telephone's number-pad and the electronics which communicate with the telephone line. The computer selects, or the operator directs the computer to select, a telephone number. This selected telephone number is used by the computer to selectively activate the proper connection in the telephone. As example, assume the selected telephone number is 703-305-8062. The computer first sends a signal to the wire connecting the "7" on the keypad to the telephone's electronics, then the wire connecting the "0", then the wire connecting the "3", etc. In this manner, the telephone's electronics treat the incoming signals in the same manner as if the operator had dialed the number at the telephone. An important attribute of this invention is that while it permits the computer to dial, there is no way a third party can obtain access to the computer via the telephone since there is no communication channel between the two; thereby providing exceptional security for the computer.
REFERENCES:
patent: 4661976 (1987-04-01), Basch
patent: 4839919 (1989-06-01), Borges et al.
patent: 4868848 (1989-09-01), Magnusson et al.
patent: 4882750 (1989-11-01), Henderson et al.
patent: 4941172 (1990-07-01), Winebaum et al.
patent: 5144654 (1992-09-01), Kelley et al.
Dwyer James L.
Saint-Surin Jacques M.
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