OMG, these #$@# got to be worse than the regular telemarketers EVER were. I finally started picking up the phone and telling them to TAKE ME OFF YOUR CALL LIST. I don't get nearly as many calls now, but I still get them. I still cringe every time the phone rings, but at least it doesn't ring as often now.
What really grinds my ass is that occasionally I will get calls from solicitors even though I'm on the DNC list, and when I try to call back, they've used a SPOOF number on the caller ID. I called my Congressman's office, who of course told me there's no law against it.
As much as I hate to say it, I think they should just change the law to prevent solicitation of any residential phone, period.
When that did not work, despite being put on the 'no call list', we just quit answering.