In new york state just go to
https://www.nynocall.com/index.htmlFill out the form and within 4-8 weeks you will not get any further calls.
If you do get calls as I did..
This was good.. You call New York state complain department and file a complaint against the telemarketer, call verison file a complaint with them and call the attorney general's office and file a third complaint against them.
Never got another call again from them. They were fines $5,000.00 for each call they made to me and were nearly taken out of business..
My way of getting even....
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James