I got this call at just before 9 PM here in Calgary but ignored it (even though, ironically, I am expecting a callback from a window and door company, just not this one). Maybe someone should notify Choice Windows that they have somebody using their phones at 11PM in Ontario? It's possible some guy is causing them grief and they don't know it. Bored security guard? Homeless guy with a lock pick? Reading the descriptions of the calls above, I'm disappointed they didn't leave a message or that I didn't answer the phone. I need a laugh and it sounds entertaining.
Can they tell when you use your cell phone? My old home number is now a cell phone and it seems I get these nuisance calls right after using my phone. Maybe just a coincidence.