1. A computer system for initiating an emergency call to an emergency services provider from an individual who is in need of emergency assistance, and for providing an accurate, dispatchable location for the individual, to the emergency services provider, for use in dispatching emergency assistance to the individual, the computer system comprising at least one processor and memory, wherein the computer system further comprises: (A) executable software operatively installed on a portable computing device associated with the individual, the executable software displaying a user interface, on a display screen of the portable computing device, that is adapted to receive a request from a user to request initiation of an emergency call; and (B) a geolocation cache database storing current location data for the individual, the current location data comprising telemetry data from the portable communications device, wherein: the system is adapted for, in response to receiving the request from the user to request initiation of the emergency call: analyzing, in real time, the current location data for the individual, from the geolocation cache database, to determine a suitable current dispatchable location for the individual; in response to determining the suitable current dispatchable location for the individual, updating an ALI database, in real time, to reflect that the individual's location is the determined current dispatchable location, the ALI database being an ALI database that a public-safety answering point that will handle an emergency call placed by the individual will access to determine the current location of the individual; and initiating the emergency call to the particular public-safety answering point.