I am getting the EXACT same thing. It is continuous and daily and multiple times a day these duct cleaning services call me. They say their from Scarborough but if you ask too much stuff they hang up. I got a number from them once, called it and it was just dead air. I really wish there was some way to charge them with harrassment.

These are fake calls. The best thing to do is immediately hang up and don't answer when they ring back. Filling to the CRTC won't help with these because they are overseas and it bypass regulations around Do Not Call.

These guys are simply out to harass you. Don't pick up.

Report to CRTC doesn't help too much. I reported some other telemarket numbers, and not too long after I still got calls from them.

If you have call display and don't recognise the number, answer the call by saying something like Sergeant Davis. How may I direct your call? They usually hang up and don't call back for a month or so.

Just called and told the guy who answered I'm suing the pants off them - I've been threatened for the last time!  
Call and threaten them with a lawsuit (416) 900-2930

He phones us CONSTANTLY!! Each time I tell him to stop, remove us from his ridiculous list, yet he continues. Again today he phoned and this time I threatened to phone the police to report harassment. How to we stop him???