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:
Oct. 30, 2001
Filed:
Apr. 23, 1997
Applicant:
Inventors:
Thomas Michael Bauer, Belle Mead, NJ (US);
Elroy P. Cartwright, Annandale, NJ (US);
Walter C. Taylor, New Brunswick, NJ (US);
Assignee:
AT&T Corp, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/42 ; H04M 3/22 ;
U.S. Cl.
CPC ...
H04M 3/42 ; H04M 3/22 ;
Abstract
A telephone subscriber placing a telephone call through a telecommunications network (,) to a telephone line carrying an existing call may interrupt that call by entering an interrupt code to the network. Upon receipt of the code, the network verifies whether the interrupt code is valid by consulting a data base (,) that cross-references interrupt codes to corresponding lines. If the code is valid for the line carrying the existing call, the network then interrupts the existing call.