Originally it was from a range of UK mobile numbers, but now it seems to all be foreign numbers so I guess the mobile operators picked up on it. Not really anyway to block it, but at least when it's an unknown foreign number I can be reasonably sure it's a scam and just reject the call.
Also, at least in my market, I've been seeing a lot of scaremongering ads about how cell phones aren't reliable in an emergency and don't alert LE to your location immediately like dialing 911 from a landline does. It's ironic when these ads are placed by the cable companies which generally use digital telephone products that are susceptible to outages and don't work when the power is out, just like cable.
On my UK mobile, it costs 10x more to call my son in the next room than to call the USA.
Of course, it all depends on the mobile deal you have, who you call, and where they live....
We could still call out in case of emergency, but it freed us from receiving calls.
(On the other hand, given how many people here don't pick up unknown numbers, calling anyone except emergency services from a previously unused landline would be useless...)
Because in areas that have relatively frequent natural disasters land lines will be more reliable and repaired faster then cell service.
Then there is also the reason that I don't have cellular signal in my house without wifi.
Other than losing power for extended periods, thereby affecting charging capability, how is this true? It seems like miles of physical wires are going to be more difficult to fix than towers.
For conversations longer than 1 minute it's just much easier on the ears, in my opinion.
Beyond voice quality, a POTS landline (at least in the US) will keep running even when the local power grid is down. Unfortunately, phone lines and power lines share utility poles, so if there's physical damage your phone service will also be interrupted.
Cardiac Arrest gets significantly more deadly after 7 minutes (I think?), and every second counts. A cellular phone is great in an emergency, but consider using a land line whenever possible.
There's basically about a thousand scenarios where "block calls from unknown numbers" feature wouldn't work. I call it the "nuclear option" and just with nukes, the collateral damage just isn't worth it.