Is there anyway to block spam callers by whitelist?

Question

I keep getting unwanted calls from entities that use fake caller ids.  So I can't block them with the normal call blocking since the number is constantly changing. The group also seems to share my number with dozens of others so even the "add number to do not call list" doesn't work (assuming they follow FCC regs).

The other common thing about these calls is the caller ID is simply the name of a state. So amusingly, another way to block these pests would be if the Caller ID equals a string matching any of the 50 US states.

So my next idea was to try to block any number that's not on a whitelist.  I only expect wanting callers on a short list of family and friends, so a "whitelist" might work. The scammers would be unable to know those numbers to spoof those.

Does Fios phone have a way to only allow whitelisted number to ring?

SynthpopAddict · Accepted Answer

Landlines unfortunately are targeted more by spammers who spoof numbers constantly.  Here's an older thread with a solution for fixing the problem from someone else who also has a Fios landline:

https://community.verizon.com/discussion/1771882/stir-shaken-to-prevent-caller-id-spoofing

retiredphonedude · Accepted Answer

Ya, Stir/Shaken wasn't what it was hyped to be. I'd get a cordless phone system with a good smart call blocker and set it to screen calls. When most spammer hit it, they won't bother to listen to the message and just hand up robo calls can't follow the directions. I've had one for several years and very few unwanted calls get through. You do have to whitelist legitimate robo calls like Dr. office, pharmacy and those types since they use robo calling also.  If you get one look for one with the largest directory and star list as you can use them up fast. Mine has 50 for directory and 10 for star list that's not enough if you have a lot of friends and family you want to bypass the screening process.