Annoying phone calls cont'd

I wrote the following two years ago : -

I am sure that there are many other people/households who are being taunted by annoying phone calls. What I would like to know, is how can a company get away with using # s such as 000 000 0000? And more annoyingly, today 613-704-0070 called me, of course it was a scam and I was not willing to listen all the way through -- yet, I could not hang up the phone, nor disconnect from that number. I pressed Off. Then, talk again, and the female voice was still rabbiting on !! Three  attempts to disconnect did not work.

How can they get away with this?
I have blocked the number now... but it still disturbs me that the phone company permits some business to have a number that is a permanent link.

OK,WHY is this still happening. We have an election coming up; Let's all remember to quiz the politician begging for our attention to pay attention to our needs. How come companies carrying out fraudulent practices get non-functioning telephone numbers. Let us make this illegal and fine the phone company along with the perpetrators.

(yes, yes, there are lots of other things for the politicians to address too. I have not forgotten.)