What's the best deal on a prepaid card to call from Prague to US? We're renting a flat that will have a phone available for local use but will have an 001-block on it to prevent int'l calls. Thanks.
I used http://www.btb-line.com. It isn't a card but you prepay with a credit card and use a 800 freephone No. and PIN to use the service. I used it to call the UK but my friends found it cheap for the US as well.