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:
Apr. 02, 2002
Filed:
Nov. 03, 1998
James Frederick Bradley, Middletown, NJ (US);
Thomas P. Chu, Englishtown, NJ (US);
Eberhard F. Wunderlich, Aberdeen, NJ (US);
AT&T Corp., New York, NY (US);
Abstract
A method of changing the characteristics of telephone call data on an ATM network that is initially transmitted via a first SVC between a first ATM switch and a second ATM switch is described. The method includes the steps of sending a set-up message for a second SVC from the first ATM switch to the second ATM switch and sending a switch-over request message from the first ATM switch to the second ATM switch via the second SVC. The method further includes the steps of sending a switch-over acknowledge message from the second ATM switch to the first ATM switch via the second SVC and sending a switch-over begin message from the first ATM switch to the second ATM switch via the second SVC. The method further includes the steps of sending a switch-over confirm message from the second ATM switch to the first ATM switch via the second SVC and transmitting the telephone call data via the second SVC. The steps executed by the present invention insure that the switch-over from the first SVC to the second SVC is accomplished without interrupting service.