Called my home at 4:17 a.m. EST on Dec 26, 2012. No one responded. Just background noise. We are on the do not call list. Tried to call back and got "all circuits are busy, try your call again later." This should be against the law.
Thankfully, I had the ringer turned off in my bedroom, but they called at 2:45 AM this morning. The call generated a message on my recorder, and it sounded like someone was there, but they didn't say anything and hung up. Possibly a tv or music in the background, I really couldn't tell. Something needs to be done. I welcome a call at this hour if it's an emergency family situation, but not from some randomness.
Same experience as above, but got two calls in a row mid-day. Then the one at 1:45 CDT. I head the background noise and at first thought it was a pocket dial, but then the robo voice came on. It almost sounded like we could make a pass through call so the recipient's caller id would show a bogus number. Calls back to the -1007 number result in a recording that this is not a working number