On Wed, 4 Sep 2019 16:03:47 +0100, "Brian Gaff"
wrote:

Who knows, but so many now give up when they get the true call, realising
they are on a hiding to nothing.
Brian
+1 I've not had a single phishing or sales call get through since I
installed a trueCall Blocker a couple of months ago.

Some genuine callers though seem to have trouble with the instructions
to "say your name then press the .... key to get connected".
(.... means I'm not revealing it, it's actually just one key press).