@Roy12345
I know you say you've had all the helpful advice you need now, but no-one has mentioned TrueCall. After my elderly parents nearly fell for a scam a few years ago now, I bought them handsets with TureCall built in. Anyone who isn't in your phone list has to announce who they are. After hearing them speak, you then have the option to accept once; always accept; block; or send to answerphone (the latter is very useful if unsure).
Scammers do not, or are often unable to (if using a power dialler or pre-recorded message, say), respond to the challenge, so get stopped in their tracks and never get put through. Genuine callers are perfectly happy to state who they are.
In the years since they've had them, they can count the number of unwanted calls that have got through on the fingers of one hand. In fact, if it's more than two, that would be stretching it. The two they can recall are where the caller did state who they were, but it was something along the lines of energy efficiency or building regulations, so they were just added to the blocked callers list!
Looking in their call log (in myBT), I can see all the recent attempts. Sometimes there can be two or three a day, but when I look the numbers up (on Who called me? or similar websites) they are ones that are often reported as scams. Other times, there can be days or even weeks between each attempt. Either way, silence is golden, as they say!
As for scam calls on mobiles, I do get the very occasional one on mine. But by that, I mean possibly in single figures per year. I can go several months without receiving any.
