Bothered by spam phone calls. Get a phone system with a Call Block button

How many spam phone calls do you get a day.  I think in a 16 hour day we get about 32.  But we have a phone that can block any calls that we designate as spam.  We designate the call as spam by pushing a button called Call Block on our phone (land line).  You can answer the call the first time to determine whether or not it is spam.  If it is, then you push the Call Block button.  After that, any call from that number will ring once and then a message "Call Blocked" flashes on the phone.

The phone system is the Panasonic KX-TGF370.  We got it at Costco.

For your cellphone you can get an app to blacklist and/or whitelist calls.  The one I use is for Android and is called Calls Blacklist.