Re: Call filtering
Not necessarily a good approach. Our GP doesn't give CLI. It's easier to answer the Withheld calls than find a new GP.
My GP doesn't call me out of the blue. Obviously if I've called someone to make an appointment and am expecting a return call, or if I'm waiting for a delivery and know the driver will phone to say "just where is your house?" then I may answer.
I get very few - almost disappointing few - nuisance calls these days. I think I must have got myself on a do-no-call list....
Mine come in bursts, I can have a month with 3-4 every day, then a month with none. Going to my online account with a local supermarket and replacing my number with that for their own complaints department made an amazing difference to some marketing calls, it was clear who they were selling my details to.