I am considering taking a Zaptel calling card (specifically this one http://www.zaptel.com/phone-card/absoluteglobal/?from_country=295&to_country=1) to Europe in a few days. I will be in the Netherlands, France, Switzerland, Germany, and Italy. Has anybody ever used one of these and if so, what was their experience? Is it worth it to buy one or is it better to take a GSM phone and buy sim cards? I would ideally like to be able to call home every 3-4 days for a month and would probably not talk longer than 10 minutes at the most. Thanks for any tips or advice you might have :)
Edit: Just noticed this was an old zombie post. But my info is current.
The web site you linked to says "CURRENTLY UNAVAILABLE - BUT WE HAVE THIS PAGE AVAILABLE FOR CURRENT CUSTOMERS TO CHECK ACCESS NUMBERS." So I would stay away from that one.
Prepaid calling cards are easily obtained when you get there. They will have access numbers from multiple countries. Just ask the clerk for the best one to call the USA. Costs from 5 euro and up. Price per call is about three cents or so, per minute. Try at the local tabac stores, even supermarkets and vending machines. They are everywhere.
You might also sign up with OneSuite.com. Its not a card, you just prepay online, write down the access numbers for the country you'll be in along with your PIN code. I've been using it for years to call Amsterdam where I have family from the USA. And to call home when I'm in Europe. Costs are less than a nickle per minute. I think you have to start with ten dollars or so, which should last you longer than a month with your calling plans.
I use the prepaid long distance plan along with my local SIM when calling home. So I use local minutes to call the access number, and the card minutes to call home. You can program the local access numbers into your phone's contacts to make dialing easy.