These people call you from a number that when you call back says the number is not assigned! They do not tell you what company they are calling from or what is the nature of their business. They will start with " you have been on one of our job search websites" and they will ask you what kind of training you are interested in. They insist in getting information you don't want to give to someone you don't know and you cannot reason with them. The only way to get rid of this caller is to hang up. But they will call back in exactly 10 days. Seems like they just want your information and not sure for what strange reason.