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.

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

CBC just did a show on these dudes...yes they are from Karachi Pakistan , yes they actually have dudes that come and do the work....check it out on CBC web , Marketplace was the show I think aired within the last month ....very , very interesting stuff to see ...hidden cameras etc  , the host even confronts the crew  that came and did the work - all shoddy - its a labyrinth of pure scum bag tactics.
Next time they call i will have them over and clean the non existent ducts in my  apartment heated by hot water register , and clean my rugs ( wooden floors ) and my upholstery ( its wicker ) and clean my windows .....its a basement apartment...get the idea folks ...insulting the prophet ( as one suggested )  is way to easy , get `em back by screwing with there resources....in this case its time , effort and  money.....The Art of War people....dig ?

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

Harrassment calling me for duct cleaning

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

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

spoofed number. Air duct Cleaning. Operates out of Karachi Pakistan, INSULT THE PROPHET IF YOU WANT TO PISS THEM OFF.