Telemarketing
From Hackepedia
Canada
Canadian Marketing Association's Do not contact list
Call your provincial telco and ask to be added to their "Telemarketing exclusion list". If they have a URL for this list, please add it here to the wiki. Typically once you've been added to the list it takes 3 months to propagate, and then you will be on the list for 3 years until you must renew.