For $20 US a year for an app, robocalls are down
to a few a month
from several a day on each of a VOIP and cell line.
Nomorobo, Robokiller, and several more - do some research,
read some reviews, and pick one. I only wish it was as easy
to filter email spam for a 25-year-old email address.
Telephone service providers may offer robocall filtering
as well. One can deal with the problem now, or wait for
Shaken/Stir, whichever.
Be super careful as you do that research - check the Terms of Service. Some, like Truecaller, are harvesting your call activity and network and reselling it.
It appears Hiya and Nomorobo have sensible policies.
However...
The problem is the completely randomized neighbor calls.
They are “calling from” real numbers belonging to real people.
Hiya Premium has neighbor blocking, but only prefix by prefix, and you can’t bulk add the prefixes.
It appears adding a prefix adds every individual number within that prefix to the phone’s block list, and each call block plugin can only block so many numbers, so the more prefixes you have, the more plugins have to be enabled.
“WideProtect” aims to simplify this, your mileage may vary:
It sickens me that one must pay to have this problem fixed. The FCC needs to step in and either require a fix or require the providers to setup customers with these services out of their own pockets.
