An inmate at an Alabama correctional facility was convicted of defrauding a tire business, STM LLC of Fort Walton Beach, Fla., out of $200,000, local media reports.

Using a smuggled in smartphone the inmate would call a tire business and ask who they sell tires to. Once he was able to obtain that information, he would call the tire buying business and find the name of an employee who works there and place an order with the tire retailer as that employee.

According to court documents, the company the inmate falsely purchased tires as was Alabama-based trucking company HMT Inc.

From inside the prison, the inmate would sell the tires to a third party business at a low price and hire someone on the outside to get the tires from the dealership he purchased the tires from.

The inmate was sentenced to another three years in prison, which he will serve while in custody for the remainder of his 2000 sentence.