Dear sir i get a call from this number can i know what is the oerpose of call

i got a call from this number. How I can know who is caller , and what call is about?

This number 437-800-5346  belongs to the scammers, the page called CERTIFIED INCOME. You can get more information about them on u tube

I received a call from Certified Income asking if I was ready to make an amazing amount of money from my home. It was going to cost me "as little as" $250 with a guarantee to triple my money in "as little as" 3 days!
These guys are major scammers. I didn't fall for his proposal but I'm sure somebody will. These people need to be stopped.