Citibank, the nation's largest credit-card issuer, is taking on long-distance telephone king AT&T in the telephone credit-card market.
Citibank has enlisted MCI Communications Corp., the second-largest long-distance telephone company, to help it launch a competitor to American Telephone & Telegraph's Universal card. The cards allow users to charge long-distance telephone calls on their Visa or Mastercards.
Citibank began notifying customers earlier this month of the service. Mastercard holders will be eligible for the service later this summer, Richard Srednicki, Citibank's business manager for Visa and Mastercard, said.