The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Mar. 23, 1998
Applicant:
Inventors:
Craig L. DeCaluwe, Naperville, IL (US);
Robert G. Demmert, St. Charles, IL (US);
Joseph Kohler, Woodridge, IL (US);
Joseph H. Mc Carthy, Orland Park, IL (US);
Assignee:
AT&T Corp., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/24 ;
U.S. Cl.
CPC ...
H04M 1/24 ;
Abstract
In a large switching system, a complete record of a call through a network can be collected by having each switch that processes the call, record pertinent data and return the collected data to a particular switch where the collected data is stored. A complete call history simplifies network maintenance and permits precise identification of calling and called parties on a call-by-call basis.