Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1987-04-09
1989-08-22
George, Keith E.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379354, H04M 1100, H04M 156
Patent
active
048603422
ABSTRACT:
A method and apparatus for a computer-telephone interface system by which a general purpose personal computer is enabled to perform telephone functions such as dialing, answering ringing lines, and placing lines on hold without the need for a separate telephone instrument. The interface system is responsive to digital signals received from a microprocessor in the computer to implement the signalling functions utilized in a standard switched telephone network. The interface system performs dialing sequences entered either from the keyboard of the computer, a location in the computer memory, a location on a display screen associated with the computer or a location specified by a cursor used in association with the keyboard. Operation of the interface system does not interfere with the concurrent operation by the computer of an applications program.
REFERENCES:
patent: 4291198 (1981-09-01), Anderson et al.
patent: 4431870 (1984-02-01), May et al.
patent: 4524244 (1985-06-01), Faggin et al.
patent: 4640989 (1987-02-01), Riner et al.
patent: 4660218 (1987-04-01), Hashimoto
aizcomp, Sunnyvale, Calif, Brochure Entitled "There's Only One PC/XT Modem Designed Tolet Both You and Your Computer Talk,", received 3/11/85.
Telecommunications, "Professional Workstation: Products Feature Zaisan, Inc. Houston Texas," p. 114, of Sep. 1984 issue.
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