American Telephone and Telegraph Co. was deluged with calls Monday as consumers clamored for information about a one-point drop in interest charged on the company's Universal credit card.

AT&T had touted the plan that morning in full-page ads in The New York Times, The Wall Street Journal, and USA Today. A spokesman for AT&T Universal Card Services Corp. said the Florida-based card company had handled 30% more calls than on an average Monday.

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