Also got a voice from this number. The 704-717-XXXX group of numbers are from the WT Harris Blvd/North/University side of Charlotte, NC, close to the hospital.
Rec. Call as Hospital billing courtesy call. They requested last 4 of SSN to speak about my bill, I refused. I google the number and found this website, just adding more info. Called Hospital and they could not verify internal number. Reported it to security. Hope this helps!
I got the same call....hmmmm...wonder what this is about. I don't give my ssn or other info over the phone either. And, if the call comes in as unavailable, it goes unanswered.