Its Market place on the CBC web page the episode is "to catch a telemarketer"                                                                 www.cbc.ca/marketplace/episodes/2013/01/to-catch-a-telemarketer.html

They repeatedly call my 89 year old father living in a nursing home.  He is old, frail, weak and it is an extremely difficult effort for him to answer the phone.  My father doesn't need the disruption of these constant, useless phone calls.  These callers and others like them should be stopped!  Of course if you try to call back the number, a recording states that the number is not in service.  Shameful.  They can invade your home but you can't call them back.  Government and law enforcement will catch up with these perpetrators.

Do not call this number again. You are annoying me and wasting my time.

Harrassing calls from this company.  Asked to get more detail about company and they refused.

Duct cleaners, told them I had them done last week by an Indian telemarketer, he rang off