Direct route ISDN primary route interface

US8670547B2 · kind B2 · utility

Assignee

• AT&T Intellectual Property I, L.P. · US

Inventors

• Timothy R. Whiting · Chicago, US
• Melanie Murphy · Oak Park, US
• Scott E. Bowers · Chicago, US
• Eugene J. Wagner · Schaumburg, US
• Gilbert Badillo · Chicago, US
• Uma Rao · Algonquin, US
• Anthony A. Haeuser · Naperville, US
• Dianna Tiliks · Elk Grove Village, US
• Gordon Lynn Blumenschein · Woodridge, US
• Carol Shifrin Gruchala · Naperville, US
• Donald W. Buell · Naperville, US
• John Wesley Moss · Lake Zurich, US

Key dates

• Filing date: Jan 4, 2008
• Grant date: Mar 11, 2014
• Expiry date: Jun 7, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q2213/13345
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method of operating a telecommunications network includes, in one embodiment, detecting a call at an originating switch of the telecommunications network and, when a destination for the call matches a predetermined destination, routing the call on designated data trunks. When traffic on the designated data trunks exceeds a capacity threshold, the method further includes routing the call to a terminating switch using interoffice trunks and completing the call to the destination from the terminating switch.