Once a labor-intensive process, the collection of monthly payments from borrowers is increasingly aided by sophisticated technology. Indeed, the new class of megaservicers, such as Norwest Mortgage Inc. and Countrywide Credit Industries, whose servicing portfolios exceed $100 billion, wouldn't exist were it not for technological advances that have driven down costs, says Gary D. Muzzy, executive vice president at the mortgage division of Alltel Information Services, Jacksonville, Fla.

By the same token, the massive scale of these servicing portfolios gives a fillip to new technology, Mr. Muzzy said in a recent interview. His company is the industry's largest provider of servicing software, and it also services loans for lenders.

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