NECI 911 Officer Certification Practice Exam

Automatic Number Identification (ANI) is a telecommunication service that automatically retrieves the phone number of the caller. When an emergency call is made, ANI provides the precise phone number from which the call originated, allowing dispatchers to recognize and record the number instantly. This function is crucial for enhancing response times and ensuring accurate communication.

While some systems may offer additional features, such as location information tied to that phone number, the primary utility of ANI lies in delivering the caller's number itself. Options related to caller addresses, emergency service response times, and demographic information go beyond the core service ANI provides and involve other systems or data sources.