First time they called, I missed it, no msg left. Will ignore. Caller ID shows Out Source Option. I see this call been going on since 2008! I decided over a year ago, I would stop answering these calls, if they leave a msg or not, sounds nonsense, don't even bother to waste your breath answering or call back. If same number keeps calling, I block it.
No one speaks just hangs up. Called back and left a VM for "REGGIE" and asked politely not to call my number again. They called a couple weeks later. I emailed the company asking to not call again.