pretty sure it's a debt collector, harris & harris.  they have other numbers starting with (312) 423...
debt collectors won't leave vm's.

Someone by the name of Mr Hoover leaves a message everyday from 3124237510.

These people can't even pronounce my name correctly.

Yup, bottom feeders. Bet their moms are so proud of what they do for a living.

A female at this number left this callback number on voice mail -- but left no name, company, other info. Said they are dent collectors. Know it's junk because no company or individual name plus I have no debt!