The NENA i3 specification for NG9-1-1 will replace the current functions of selective routing, ALI and MSAG with IP-based software functions and databases. It will use a specific design for an emergency services IP network (ESInet) and employ new functional elements for dynamic call routing and location validation. GIS databases and geospatial policy-based call routing are key elements in the NENA i3 architecture. As originating networks evolve, it will be possible for the caller’s location to be determined before the call is delivered to a PSAP. Read full article

“The conventional concept of civic address validation will continue to be used for NG9-1-1. However, the terms ANI, ALI and MSAG will go away because their functions will be replaced by GIS databases and a new location validation function (LVF). The GIS data, once validated, will provide location information that will be used for routing emergency calls to PSAPs. All of these elements working together will form the new emergency call routing function (ECRF) that’s a critical component of NG9-1-1.” Read full article .