Complaints to the DNC site form a pool of intelligence for law enforcement and regulators, so they are of value in showing behavior patterns of violators. If you want more human intervention, and I sure would in your place, you'll have to determine a caller identity and/or purpose. Right now the other mystery caller boards have nothing, so this may take time.
You can send your story to the FTC and attorneys general for most categories of phone pests. There are federal and maybe state laws to help you for each type, particularly if you want a judge or arbitrator to punish your callers. When you are able to get specific, the links below should give you places to start your homework.
Telephone Consumer Protection Act
Telemarketing Sales Rule
Various laws in brief from the FCC
Fair Debt Collection Practices Act
Resident47 Sep 30th, 2011
This was a recorded message that my caller ID shows came at 3:18AM. Yes that's right 3 o'clock in the morning. It scared me. I have a 90 year old dad and a sister with cancer. I was so afraid something happened to them. After this call I had trouble falling back asleep. I've filed a complaint with the National no call registry but I don't know far that will go.