SPAM Risk and Telemarketing Calls inbound

What do people do to ward off SPAM Risk and telemarketing calls that are non-stop??

Yes, have downloaded and installed AT&T ActiveArmor app on my iPhone.  Active and using. 

Calls still come and upon login to the AT&T site, it does not show any service, link, or referral how to manually block every

call that comes in.  No content assists AT&T users for this invasive situation. 

I can only block callers on my Contact and incoming call log screen.  I get so many calls I don't have time to 

keep up with all this negligence and intrusion.  Too numerous. 

Help Please!!