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:
Dec. 04, 2007
Filed:
Jul. 07, 2006
George Coleman Allen, Jr., Pflugerville, TX (US);
Steven R. Partridge, Austin, TX (US);
Samuel Sigarto, Raleigh, NC (US);
Tina Sigarto, Raleigh, NC (US);
Haifeng BI, Austin, TX (US);
Richard Wayne Stephenson, Austin, TX (US);
George Coleman Allen, Jr., Pflugerville, TX (US);
Steven R. Partridge, Austin, TX (US);
Samuel Sigarto, Raleigh, NC (US);
Tina Sigarto, Raleigh, NC (US);
Haifeng Bi, Austin, TX (US);
Richard Wayne Stephenson, Austin, TX (US);
AT&T Labs, Inc., Austin, TX (US);
Abstract
A distributed network switching system includes a data network. The system also includes multiple access interworking function (A-IWF) devices each operating as a gateway that enables customer premises devices to directly interface into the data network. The system further includes a centralized control and signaling interworking function (CS-IWF) device that performs call control functions and administrative functions and is adapted to interface narrowband and broadband signaling for call processing and control within the data network.