It appears there telephone number is a company where there is a scam going on. They also are definitely practing unscrupulous collection tactics. If you get a call from them, report them to your state and federal offices. The voice mail does not have a company name. Persons propose to be a federal agency of some kind.

This company called my cell phone identifying themselves as a federal agency conducting an investigation on someone who supposedly used me as a gaurantor on a loan and that I was responsible for repaying the loan.

Caller called me indicating he was from the FBI and investigating me for nonpayment of a payday loan.  Call someone who knows me a left a message that he was investigating me and that I needed the Lord and they were guarantors for a loan I made. Check to see if these people have used your ID and I am with all the credit agencies.  Report to your state agencies. Threatened to call supervisor or employer.

You may also want to report this to the FBI -- https://tips.fbi.gov