There is a single emergency telephone number in Europe: 112. In Italy, the Carabinieri will answer this telephone number for you. Their duty is to understand the problem and immediately contact the appropriate government service.
Calling this number means that you yourself (as well as those around you) are in a life-threatening situation (car accident, serious injury, earthquake, disaster in the mountains, forest, island, cave, etc.). Your position is calculated from the coordinates of the call and emergency measures are taken.
Fire brigade: 115
Medical: 118 or ask locals (hotel receptionist, landlord) for an ambulance - "pronto soccorso
Help: 100