Oops! I clicked "Reply" too soon, and now the "edit reply" option is not working.
I meant to add: on that page, scroll-down to see "Connecting you with the world". To the right of these words, click "Download rates" for the minute-by-minute rates for every country, including the USA.
Compare this minute-by-minute rate to prepaying $10 (or $20) per month for long-distance minutes to the USA.