DALLAS (AP) – A mentally ill suburban Dallas man has been sentenced to 18 months in prison for making thousands of prank phone calls to the National Runaway Switchboard in Illinois.

Jermmie Marquis Davis, 24, told a federal judge Thursday that he had not been taking medication for his schizophrenia when he made up to 1,000 calls a month from 2005 through 2008.

The Dallas Morning News reports that Davis said he would dial the hotline and then make a three-way call to a phone sex line, hang up and immediately dial again.

The judge ordered Davis to repay $88,738 to Sprint, the cell phone carrier he used to make the calls on various accounts.

Davis apologized in court. He said he is now taking his medicine and has changed.

(© Copyright 2011 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)

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