"Ray The Video Guy" has a YT Channel called "Best Utah Businesses" and probably has over 100 of his Videos Ranking on Page 1 for the respective KeyWords.
https://www.youtube.com/user/BestUtahBusinesses/videos
I bought a couple of Ray's Courses and Iam SURE he is being Paid by his Clients.
He controls the Phone Numbers (Twilio or CallFire) and if someone stops paying he re-direct the calls to someone else.
Don Alm