Don, can you be more specific about the incidents in question?
If you mean where someone pitching solar power disguises their call as a survey, that comes from my returning non toll-free calls (while hiding my number with the *67 prefix), noting the greeting played and cross-reference the telephone numbers on sites such as 800notes.com and/or whocallsme.com.
On these sites, people who do answer these calls log their experiences.
What I can do is review my posts on both sites and, somehow, provide links/details about the entries.
