How to use cold calls (letters) in freelancing?

Question

Freelance

Tell us about what "cold calls" (or "letters") are and how to use them in freelancing?

Answer 1

Cold calling / mailing is when you find on the Internet a list of work phones / mailing addresses of people who have been stolen by someone who do not know about your product and who do not need it. And you start calling everyone in a row in the hope that someone will buy something from you, which makes the population terribly nervous. And then those whom you called find you and you realize that you had to "cut the antenna" ...