Receives and records incoming emergency calls, advises caller on appropriate first aid measures, maintains contact and dispatches appropriate emergency personnel, and acts as communication link between emergency personnel and treatment center. Tracks movement of hazardous material across the state, monitors movement of storm systems or other potentially disastrous situations, and alerts appropriate emergency personnel as required. Activates warning sirens at Arkansas nuclear reactor sites weekly for testing purposes or in the event of an emergency. Places and records calls for hearing-impaired persons via computer terminal and acts as voice intermediary. Receives, records, reports, and relays information and/or requests for assistance from various public officials, departments, or the general public in life and death situations involving medical assistance, transmission of health information, or danger. Performs other duties as assigned.