05566339 is referenced by 241 patents and cites 24 patents.

An advanced electronic alert system for monitoring computer network(s), environment, security and the status of tasks being processed by a computer. The system stores voice recorded and text alert messages on computer readable magnetic media; automatically dials designated persons when alert situation(s) are detected; and then replays the applicable recorded voice alert message(s) once an alert call has been completed. Alternatively, alert messages may be transmitted by the system using phone dialing tones, in those cases where an alert call is placed to a digital device, such as a pager. The system issues automatic alert warnings to one or more designated persons when main electrical power fails or is restored; the temperature becomes too hot or too cold; a loud sound is detected, such as that produced by a smoke detector, fire alarm, etc.; a central network computer/file server fails; an intruder and/or water has been detected; main and/or backup power fails; a computer software program fails and/or is successfully completed; or a microprocessor based computer used as part of the system fails.

Title
System and method for monitoring computer environment and operation
Application Number
7/966081
Publication Number
5566339
Application Date
October 23, 1992
Publication Date
October 15, 1996
Inventor
Eric J Elmquest
Arlington
VA, US
Ronald J Perholtz
Silver Spring
MD, US
Agent
Sixbey Friedman Leedom & Ferguson P C
Agent
Eric J Robinson
Evan R Smith
Assignee
Fox Network Systems
MD, US
IPC
H04M 11/00
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