Had a call today, actually answered because it showed an area code for an area from which I was expecting a call. A male voice said "hello" then paused, then said "hello" and paused, repeated a couple more times, then hung up. No idea.
A man with broken English called this morning at 9:39. A woman with even worse English called this afternoon at 3:45 PM. Claims she is with the medical claims department. When I asked with what agency, she hung up. When I called the number back, it is not a working number.