I don't bother with a landline, and there aren't too many spam calls with a mobile. The only time i get them is from other network providers towards the end of my contract. "three" tried to ring me several times, but i missed the first call and looked up the number, so i knew who it was. Each time they rang, they were quite upset and confused when i kept telling them they had the wrong number (they misread my christian name as a similar one). I guess they had paid to get my number from somewhere. I thought it served them right -if i wanted their advice I'd have rung them myself!