Computerized telephone accounting system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 14, 1989
Grant Date -
N/A
app pub date -
Oct 13, 1987
filing date -
Oct 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computerized telephone system, small and compact enough to fit within a standard size telephone instrument, automatically calculate the cost of any direct dialed long distance call within the United States and stores the cost information together with the number called, and the date, time and duration of the call, for display on a display unit or for production of a printed report. No operator data input is required.
First Claim
Family
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Cited Art Landscape
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