Dial plan routing for fragmented networks

US8462637B1 · kind B1 · utility

Assignee

• Sheridan Ross P.C. · US

Inventors

• Christopher D. Baldwin · Princeton, US
• Neil Ellis Gallensky · Westminster, US
• Donald E. Gillespie · Ann Arbor, US
• Michael Marcus Gruen · Ahrensburg, DE
• Alan Stuart Mulberg · Denver, US
• Luigi Gentile Polese · Thornton, US

Key dates

• Filing date: Sep 19, 2005
• Grant date: Jun 11, 2013
• Expiry date: Mar 18, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M7/0057
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

In one configuration, the present invention is directed to an enterprise network that includes geographically dislocated first and second network regions communicating with one another through first and second networks and respectively comprising first and second gateways and first and second groupings of trunks. A media server is positioned in the first network region that includes a routing agent. When a WAN outage occurs, the routing agent, using a dial plan, maps the dialed digits to an electronic address addressable over the PSTN and routes the call over the PSTN to the destination second communication device in the second network region.