Obtain and dial the AT&T USADirect access number for the country you are calling from using a telephone line that allows you to call outside of that country.
When prompted, enter the 1-800 number you wish to dial out to -- enter "1-800" followed by the next seven digits.
After the tone, enter your credit card number and the four-digit expiration date from a MasterCard, Visa, American Express, Discover or Diner's Club card. Your call will be connected thereafter.
