It's a pattern of calls that I received. Every few months, it start with number of survey calls from different companies, then the next wave will be air duct cleaner, home alarm system or windows & doors. Final stage will be a collection agency's phone call....asking someone that I don't even know or met. I myself have not debt, no late payment. I just don't know why I become a  popular person or phone number for these agency to call me and I don't know where they got my number. If they use their brain to think....if someone run away form their debt, will they tell anyone( especially to a total stranger) where they are going to hide??
I think all these air duct, home alarm or windows & doors are the foot soldier working for a collection agency. First, who would spoof a number just to call a handful of people, not even reach a page of complaints.
Second, caller with heavy Indian accent and were very rude.
I think that's a give away.

number that call me this month:
1-678-877-2334
1-800-565-8605
1-855-235-7872
1-866-619-6312
1-905-963-1201
1-944-882-3211
289-216-9191
416-342-9030
416-342-5926
416-900-2930