How to get a taxi to come to Nettuno from Anzio

Will you be carrying a phone? When I needed a taxi from a rural British rail stop, for instance, that stop had no real station or telephone, but I had one with me. I would ask the hotel to recommend a preferred taxi company and phone number. They might even handle the reservation for you if you tell them your train arrival time. See also http://www.proloconettuno.it/sito/informazioni/taxi/taxi.htm.