I receive a daily call from this "unknown" number!!
When answer the call, and say hello, several times, no respond or sound from the other end,
I always end up disconnecting the call.
This company is trying to reach the person who had my phone number over a year ago. She gets lots of calls about nonpayment of her debts. It's been a year. Enough already.
If you KNOW you owe no money, or believe the call was from a fake debt collector, please take the time to read this:
http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors