The trouble with letting them go to voicemail is that they fill up my voicemail, and on two occasions I came home to find that my voicemail was full, and that other people that I was waiting for calls from could not leave a message. If I put them on "block" on my mobile phone, the calls do not ring, but they are still able to leave voicemails.
I never answer calls from unknown numbers, esp unknown area codes. All such calls go to voice-mail. This number called twice and didn't leave a message. Scammer assumed. Number blocked.
This number called me and said they were from the United treasury IRS and that I owed money Exedra Exedra I know it's such a scam because I am so up to date on all of my federal and state taxes. I have had about enough of this Kama I get at least one call every two weeks I left on my answering machine