Avoid making phone calls from your hotel room, as surcharges are exorbitant. There are many public phone booths in every city. To make an international call from Spain, dial 07, followed by the country code, the area code, and the telephone number. There are many cybercafes in Madrid and several in each of the other cities we'll be visiting. Charges are quite reasonable.
Connections tend to be slow, however.
All participants on the program must show proof of health insurance. Clinics and pharmacies are abundant in the major cities. Medical facilities are generally quite good in Spain. In case of emergency, the number to call is 006. You will need an adapter if you only have 110 volt electrical appliances.