I called the number back, and got a voicebox for Mary Ann, of Heart and Stroke, thanking callers for their supposed interest in canvassing for H&S. The voice mailbox is full, so I could not request removal.

I guess the thing to do is call H&S during the day, find their telemarketing group, and get off their list(s) for as long as possible.

The other thing is to ensure the grounds that still permit surveys and political calls at least require the decency of a real person making the call. I think what I hate most is when robots call repeatedly to be sure the time of telemarketers isn't wasted when they do find time to talk.