It took me a month to really figure out how to use it. The instructions were in Greek. I had to charge it for 24 hours before I could even use it. I never got my answer service working. The next year I found the answer to my problems.
Incoming calls are free.
They deliver the phone to you at the airport, your hotel, your cruise ship and even on the islands and it is already charged up and ready to go. You don't have to wait 24 hours like I did. They give you a little lesson on how to use it when they deliver it. They also give you written instructions in English in case you are the kind who lessons go in one ear and out the other. The phones also have an option where it can pinpoint your location, say if you are on the Acropolis.