Got a call from this number today, and when I picked up a man said Hello, then I said Hello, and then he just said, "Oh, I'm sorry. I think I have the wrong number." and hung up. Call was to my cell phone.
Got a call from this number this morning, before I could get a word out I hear "Hello" and then another "Hello" before I got our introduction out. Nothing after that and was about to call back when I checked the number here.
It seems they say I've got the wrong number to everyone, so the only conclusion is that they are verifying the phone number is valid or looking for business name