Do you every block the numbers that come thru that are spam calls? I go thru my phone and the DH's about every 3rd day and block anything that shows as "potential spam" or doesn't leave a msg. Recently the spammers have been spoofing a common prefix in our area. I know they're actual live numbers b/c a few have ended up being in my contacts. I don't block those, just in case. But anything else gets blocked. I think that it's reduced the number of stupid calls on our phones, but maybe I'm just optimistic.