Whats the best mobile phone card to use for visitors to the US dialling internationally?

Where can my daughter buy a prepaid mobile phone card that she can use to make %26amp; receive international calls. Which one has the best value. Her phone is a Nokia %26amp; she is from Australia

Whats the best mobile phone card to use for visitors to the US dialling internationally?
New York Discovery if she is in NY.
Reply:One of the Best Calling Cards to call Australia from USA is a "Cheap Street" card from StartDialing.com





http://www.startdialing.net/p/?id_from_c...





You will get a great rate of 1 cent a minute, so for only $10 you can talk for 18 hr 31 min





You can buy it online at


http://www.startdialing.net/p/info.php/1...