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:
Mar. 17, 2009
Filed:
Aug. 28, 2007
Harold C. Fleischer, Iii, San Antonio, TX (US);
John E. Simino, Arnold, MO (US);
Kenneth Robert Stroud, Lago Vista, TX (US);
Harold C. Fleischer, III, San Antonio, TX (US);
John E. Simino, Arnold, MO (US);
Kenneth Robert Stroud, Lago Vista, TX (US);
AT&T Labs, Inc., Austin, TX (US);
Abstract
A method and system include routing telephone calls from multiple private networks via public lines and trunks in a public switched telephone network (PSTN) to a host switch, at which the connections would begin to run parallel. The host switch routes the telephone calls via a private trunk group to a private facility, such as an electronic tandem network (ETN) node or an asynchronous transfer mode (ATM) switch. If the private trunk group is full or unavailable, the host switch routes the telephone calls over alternate private or public trunk groups and selected carriers.