Received this call today as a follow-up call from a few days ago - the first call was 703-555-0154 and the man left a threatening message - me or my lawyer should call him back asap or else there would be consequences. He then proceeded to wish me luck should I not call back. I checked the number on -line and found other people had received the same threatening message. I notified my company manager and also the front desk to watch for that number. When a similar number came through, I took the call and was informed that I was a suspect in a case - no company name, no specifics given. I informed the man -who had a heavy accent - that I had checked him out and reported him to the authorities since he was a scammer. Then I told him to drop dead.
I answer if only to tell them I'm on the do not call list. If you answer with just hello & nothing else they just hang up. And it's 10pm - trying to sleep. Ugh.