1. A computer-implemented method for guiding a dispatcher when communicating with a person needing assistance via a communication device regarding an emergency incident and for dispatching an emergency dispatch response to the incident, the computer-implemented method comprising: presenting, on a dispatch center computer device, a pre-scripted interrogation comprising a plurality of preprogrammed inquiries for the dispatcher to present to the person needing assistance in order to systematically obtain a description of the incident, wherein the description of the incident comprises responses by the person needing assistance to the plurality of preprogrammed inquiries; sending, using the dispatch center computer device, at least one preprogrammed inquiry to the person needing assistance as an SMS/MMS message; receiving, on the dispatch center computer device, input representative of the responses by the person needing assistance to the preprogrammed inquiries of the pre-scripted interrogation; determining automatically on the dispatch center computer device a determinant value from one of a plurality of pre-established determinant values based on the input representative of the responses by the person needing assistance to one or more of the plurality of preprogrammed inquires; and generating an emergency dispatch response by emergency responders based on the determinant value.