I think this is a scam... I do not have an appointment. There wasn't a doctor's name listed either. It just said "This is a reminder of an appointment at our (whose?) office. If you do not keep the appointment, you'll be charged." When I called back, of course it's busy!! If it was a real call wouldn't they identify themselves?
I received the call at 6:06PM ET and didn't answer it. Called it back later and got a message saying, "We're sorry, all circuits are busy now. Will you please try your call again later. Mobile 251 mobl." Boyfriend thought I got a call from a secret admirer...
My sons doctor in Mountianside NJ uses this service to make appointment reminder calls. He is with Children's Specialized Hospital. I hope this helps.
I was going to clear it off my caller info here on-line then listened to the message