This is a Sales Call for sure. Called back after they didn't leave a message, and heard "Press 9 to be placed on the Do not Call List" which I'm told is a scam so that they know you're an actual person, so I didn't do anything.
Got a call and I usually don't pick up unknown numbers but after answering and staying on the line for two minutes, they hung up. I did hear breathing so yea. Its a live person