Wait a sec....
You guys have landlines?
How? Why? Who?...
Well, yes, some folks do still have landlines. I will probably always have one as I have been through several disaster situations where cell phones didn't work while the landlines did and we're talking a major city infrastructure - just out for weeks. Try going through a hurricane and having no phone with no way to communicate with loved ones to check in, or call the fire department when the neighbor's house catches fire from a downed line hitting their house... landlines don't care if the electricity is out so no worries about charging a phone in the case of an emergency either. I also have a few older relatives that can't hear very well when I call on a cell phone - the technology is advancing, but landline quality still kicks its ass.
I also have a house alarm and (cheap) internet hooked in through the landline.
And scary enough, telemarketers WILL call a cell phone number too if they get a hold of it...
Back on topic:
I am also on the do not call list in the US and still get occasional "telemarketer" calls. When looking up the numbers tho, it appears that they are the scammy type that won't ever stop calling since they are out of the country. We usually don't answer it unless we recognize the number, and those types rarely leave a message, so it is annoying if I'm home to hear the phone ring, but otherwise I don't care.
I do make a note of any local caller and will answer and tell them to remove the number from their database.
You know that charities can still call you even if you have a do not call listing? It is supposed to be only charities you've donated to in the past, and I almost don't want to donate to them any more when they call my house to solicit funds, and I've told them that I will stop donating if they don't remove my number.