I know this has come up before and wonder what the latest views are.
I don’t answer my landline anymore until I hear if a message has been left - scam and cold callers don’t do that.
Sometimes a particular scam / cold caller (Morocco I’m told) will ring my landline then immediately afterwards my mobile.
I know I can block recognised scam / cold callers on my mobile but SFR tells me there is nothing I can do on my landline. except have my number removed from the directory.
These scam / cold callers are such a nuisance and invasion of my privacy that if I can’t block them on my landline I may as well abandon it and just use my mobile phone.