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:
Jun. 05, 2007
Filed:
Mar. 23, 2000
Haifeng BI, Austin, TX (US);
George Coleman Allen, Jr., Pflugerville, TX (US);
Randy Beamon, Cedar Park, TX (US);
Weijing Chen, Austin, TX (US);
Janice Elaine Doerner, Dripping Springs, TX (US);
Mehran Esfandiari, El Cerrito, CA (US);
Gary Jonathan Gibbons, San Antonio, TX (US);
Paul August Kaschube, Austin, TX (US);
Bruce Allen Nance, San Antonio, TX (US);
John Pinch, Richardson, TX (US);
Tina Sigarto, Raleigh, NC (US);
Barbara Engel Smith, San Antonio, TX (US);
Matthew Wayne Stafford, Austin, TX (US);
George Anthony Young, Austin, TX (US);
Haifeng Bi, Austin, TX (US);
George Coleman Allen, Jr., Pflugerville, TX (US);
Randy Beamon, Cedar Park, TX (US);
Weijing Chen, Austin, TX (US);
Janice Elaine Doerner, Dripping Springs, TX (US);
Mehran Esfandiari, El Cerrito, CA (US);
Gary Jonathan Gibbons, San Antonio, TX (US);
Paul August Kaschube, Austin, TX (US);
Bruce Allen Nance, San Antonio, TX (US);
John Pinch, Richardson, TX (US);
Tina Sigarto, Raleigh, NC (US);
Barbara Engel Smith, San Antonio, TX (US);
Matthew Wayne Stafford, Austin, TX (US);
George Anthony Young, Austin, TX (US);
AT&T Labs, Inc., Austin, TX (US);
Abstract
A system and method for reducing and surviving failures in a voice trunking over ATM (VTOA) environment includes an ATM network having a plurality of interconnected ATM switches. The VTOA system also includes a CS-IWF complex having a plurality of interconnected CS-IWF units, each unit having a plurality of processors. An end office building may also be provided for interaction with the VTOA system. The end office building includes multiple T-IWFs, and a switch that distributes calls among the T-IWFs in a load sharing manner. Each T-IWF has a plurality of processors and is part of the VTOA system. A switch management system is also provided in the VTOA system. In order to reduce and survive failures, the switch management system includes a plurality of switch management system units. At least one of the switch management system units is a backup unit for at least one primary switch management system unit. Each switch management system unit provides application redundancy within itself.