Published: Sep 20, 2011 8:41 PM EDT

WASHINGTON (AP) - A businessman has pleaded guilty to rigging pay phones he owned to robotically call toll-free numbers, illegally racking up $4 million in 50 cent fees.
    
Nicolaos Kantartzis pleaded guilty in federal court in Maryland on Monday to programming his pay phones to make repeated phantom calls to toll-free numbers belonging to companies and the government. Such calls are free to legitimate users, but the owner of the toll-free number ultimately pays the pay phone owner. As a result, Kantartzis got a fee each time his phones rang the numbers, even if no one was on the other end of the line. Authorities say the scheme spanned six years and 8 million bogus calls.
    
Kantartzis's lawyer says that his client has already repaid the government the cost of the fraud.

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