My daughter will be studying in Florence and other Italian cities for a month this summer. Can anyone recommend a provider and purchase location? Most calls will be to other group members using local SIMS (she will have an unlocked phone with correct freqs). Calls home to USA will be on prepaid telcom card. Info i have seen indicates lot of paperwork to buy local SIM. Could buy US prepaid sim but she leaves in 10 days. thanks for any information.