
a touch disengenous....
But in areas with locked in internet and DSL requires a landline, what do you do?
The other false flag is that mobile phones (Android does it , I assume iThingy does) have "don't ring if it is not in my phone book" applications. Mine does. And I love to eat spam calls (Tip: Make a spam contact, add the numbers and when you sync your phone the spam list goes with you...).
I use Truecaller, and my VOIP service (Vonage) does a very good job of blocking spam.
As I have mentioned before, I have a digital fax attached to my landline so it silently burns the ears of spammers...
P.