Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1986-03-21
1988-04-19
Schreyer, Stafford D.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379112, H04M 1532
Patent
active
047395095
ABSTRACT:
This message chronicling apparatus consists of a personal computer interposed between the principal's telephone station set and the port circuit of the business communication system which serves the principal's telephone station set. The personal computer intercepts all call signaling from the business communication system. The personal computer software collects the data so received and creates a record in the memory of the personal computer of the incoming call. The principal's personal computer not only interacts closely with the business communication system, but can also be interconnected in a local area network with other personal computers or terminal devices such that a user at one of the other devices or personal computers can create a call record for the principal's personal computer.
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N. Accarino et al., entitled "Frame-Mode Customer Access to Local Integrated Voice and Data Digital Network", published in the Conference Report of the IEEE, 1979 International Conference on Communications, pp. 38.5.1-38.5.7.
American Telephone and Telegraph Company
AT&T Information Systems Inc.
Graziano James M.
Schreyer Stafford D.
Volejnicek David
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