I have "block" on my phone - it still rings once and then is blocked.. which when someone is calling every hour of the night is still a big problem.
I have called Bell and subscribed to "privacy" screen.. only to find it doesnt work for long distance numbers, 1-800 numbers, unknown numbers and best yet.. cell phones which many of these seem to be.. all that to say - that form of blocking also doesnt work..
Im also on the "no call" registry.. but of course that doesnt work if the call is originating outside of Canada.. if from within Canada - at least you can put in a complaint to CRTC at 1-866-580-3625.
Got a call from this number @ 4:153 p.m.. Didn't answer it. They left no message. I'm on a "do not call" list too. My telemarketer calls have been reduced considerably, but I still get occasional ones.