Calling cards for use while dialing from another country are available from many popular online outlets, including PennyTalk.com, CallingCards.com, NobelCom.com, and Zaptel. Most cards work when dialing in any country.
The crucial element of a calling card to be used in a foreign country is the local access number. Calling cards are used by dialing the number of the calling card company, and then dialing the desired number. The cost of a call varies based on which calling card company number is dialed. If at all possible, a phone number in the country where the call originates should be used to reduce rates.