Finally a free calling card solution that works a lot like free voip.  The Free Calling Card, being offered from NobleCom, will give you up to 15 minutes free for most calling destinations.

Limits for the Free Calling Card
You can’t just sign up for unlimited cards.  The cards are limited to verification of a USA telephone number. That’s right you need a free USA incoming number to use this service. After verification you’ll be sent the information via email which pertains the calling card information.

You can Sign Up for a free card at NobleCom.  Keep in mind that the new card works in many more regions than free voip calling companies.