Just make sure you have a caller display service as part of your telephone set up and you can take control of who rings you with Call Saint.
What a pleasure to press 'Blacklist' when yet another unwanted caller asks you 'how you are today, Mam' ( giveaway) Gradually eradicating those nuisance calls.
You can set this up to automatically block the numbers used by call centres, as well as Withheld and International, you decide.
The small white box resembles one I had a while ago that shows you who has rung, in nice big numbers, always handy to know with this extra helpful service now included. It's easy to set up, my mother, in her ninth decade, could manage it.
I notice that some new phones come with this service built in but for those of us otherwise happy with our telephone set up, this is just the job. Thank you Call Saint for giving me back control of my phone!