I've also received calls when I'm not home.  I called back and it's the Journal de Montreal wanting to know if we want to subscribe to their services.  It's a telemarketing call.  If you left your phone number, they will assume you want to subscribe.

very similar to the number (418) 863-6202my house gets a couple calls from this, i finaly answer this time, they dont say anything, i call back, its for the journal the montreal, there is only a message left in french, left my number, hopefully they remove my number from there list

Contact CSE selling subscriptions for "Journal de Montreal"