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Requirements: caller location L1: Multiple location providers end system & “network” L2: Civic and geographic precise geo not always available (e.g., within building) “Room 345, 3rd floor” more useful than “125’ above sea level” provide both if generated allow for in-path translations (geocoding) L3: Location-source identification L4: Ascertain validity of location information could be combined with call testing existing system: MSAG (street and address range) |