Full transcript of voice message:

"Our toll-free number: 1 877 922 5201. Again, our toll-free number is 877 922 5201. Thank you."

This number belongs to Trustmark Recovery Services, 541 Otis Bowen Drive, Munster, IN 46321.

I keep getting a call from this number.  The computer leaves a message "please have ________ call this number, etc."  However, they never say the actual name they are seeking.  I called the number and they indicated that it was a billing company.  They said that they would transfer me, but I was never transferred to anyone.