Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent
1989-02-23
1990-05-08
Schreyer, Stafford D.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
379113, 379135, 379136, H04M 1504, H04M 1518, H04M 1522, H04M 322
Patent
active
049244884
ABSTRACT:
In a telephone monitoring system a number of telephone lines are simultaneously monitored by a single monitor unit which connects the respective voltage signals transmitted by the lines into input signals having a digital format to a corresponding number of personal computers or in the alternative to a mainframe computer which is accessible by a number of keyboards corresponding in number to the number of lines being monitored. An operator responds to the input signals from the telephone lines by entering comment data through the keyboard as the data corresponding to the input signals is simultaneously displayed on the screen associated with each keyboard. Each personal computer or the single mainframe is programmed to store, retrieve and analyze the data simultaneously received from the monitor and the respective keyboard. As the data is being processed it is displayed on the respective screen and/or is available in printed form from a printer linked through the monitor unit to each of the personal computers or the mainframe computer.
REFERENCES:
patent: 4712230 (1987-12-01), Rice
patent: 4815120 (1989-03-01), Kosich
JSI Telecom J1066 Dial-Up Slave System Users Manual, undated.
JSI Telecom J1033C Dialed Number Recorder Users Manual, undated.
Discovery Technical Manual, published by Mitel Datacon, Issue 1, May, 1987.
Enforcement Support Incorporated
Schreyer Stafford D.
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