Next Generation 9-1-1 (NG9-1-1) System Initiative Final System Design Document [Version 2.0]   [open pdf - 2MB]

"Next Generation 9-1-1 (NG9-1-1) Initiative is a research and development project funded by the US Department of Transportation (USDOT) to define the framework and plan to deploy Internet Protocol (IP)-based emergency communications across the nation. The project has helped to define the concept of operations, functional requirements, and system architecture, and to develop a transition plan that considers implementation costs, values, and risks. The NG9-1-1 Final System Design document is the culmination of the technical work of the NG9-1-1 Initiative." In addition, the document states that "[t]o demonstrate the networking features of NG9-1-1, a standalone and secure POC network was designed and implemented. The network connected three laboratory facilities (Booz Allen Hamilton and Texas A&M and Columbia Universities), four PSAPs (Rochester, New York; King County, Washington; St. Paul, Minnesota; and Helena, Montana) and one statewide PSAP network (the State of Indiana). Each of these entities was connected via secure Generic Route Encapsulation (GRE) tunnels over Internet2 and a mix of AT&T's Commodity Internet and Multi-Protocol Label Switching (MPLS) network."

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Department of Transportation, Intelligent Transportation Systems: http://www.its.dot.gov/
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