Hardly a "Latest Scam". Most have got these several times a week for years.
Solution: I got a BT8500 'Call Guardian' phone. Lets anyone on your call list straight through, anyone else has to verbally identify themselves first before you 'accept' their call. Complete end to nuisance calls (were around 6 per day). The caller display lists them all too, almost all bogus spoofed numbers.
Do I miss 1) Microsoft / BT; 2) recent car crash claims; 3) PPI harassers ? Not at all !!!!
If I am gluing, painting, cutting etc I am only interrupted by genuine calls.
Simples