Call blocker might be of some help. Also don't pick up on numbers you do not recognize, or where there are caller IDs that seem odd. Or where there is no caller ID. There’s no way to stop the calls from being initiated. Calls originate in India and Pakistan.
This is not a phone scam at all! This is an opportunity to make money using the internet! If its not for you fine, but it is definitely not a scam! I've received thousands of dollars by participating in this opportunity and you can too!