Kansas City, Mo. ? Sprint Corp., in another bid to attract business customers, said today it would offer discounts if a company sees more than minimal problems with its wireless Internet and e-mail services.

The service-level agreements come seven months after the nation’s third-largest wireless carrier offered similar guarantees for wireless voice services.

Barry Tishgart, director of product development and management for the Overland Park, Kan.-based company, said the two deals were aimed at encouraging businesses to switch more of their telecommunications systems to wireless. He added that those companies typically used service-level agreements to choose and monitor the quality of land-based phone service.

“It’s important because we see more and more corporate customers rolling out wireless e-mail or wireless sales force capacity, and they need to know … they’ll have a high-quality experience,” he said.

Atlanta-based telecom analyst Jeff Kagan said customers generally had not cared about performance problems because wireless Internet speeds were so slow they couldn’t tell if they were having a problem or not.

“Now it’s reaching entry-level broadband speeds — it’s getting fast,” Kagan said, noting that many companies either already offer or plan to offer real-time television on cell phones. “Now they have to address the customer issues.”

Only new or renewing accounts paid for by a company are eligible for the agreements, Sprint said. Individual customers, even if they use their phones primarily for business, can’t get the guarantees.