ECRF (Emergency Call Routing Function)

A functional element in an NGCS (Next Generation 9-1-1 Core Services) which is a LoST protocol server where location information (either civic address or geo-coordinates) and a Service URN serve as input to a mapping function that returns a URI used to route an emergency call toward the appropriate PSAP for the caller’s location or towards a responder agency.

  • External ECRF: An ECRF instance that resides outside of an NGCS instance.
  • Internal ECRF: An ECRF instance that resides within and is only accessible from an NGCS instance.
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