Go buy a LOUD whislte or one of those loud horn cans that they blow at sports games and keep it by your phone.  Then, when these types of calls come in, press the number they want, and talk really quietly, as though you are interested in their service.  They will have to turn up their headset to hear you, and while you are talking, blow the whistle or horn into the phone and then laugh at them and hang up.

Do NOT CALL  ANYMORE..  I  DON'T NEED   THIS   HARRASSEMENT!

I just got a call on my home phone (land-line) from this number.  Weird the way it showed up on call display -- tel. no. only displayed in both the name and number sections of the display.  They left no message on my answering machine.  Obviously in ""905" area code means it originated in the Greater Toronto Area.I have no idea who it is, and that's why I didn't answer.  That's why we have answering machines!

1-(905) 233-4214 aujourd hui encore ATTENTION cette compagnie de fraudeurs est déjà poursuivie aux états-unis pour fraude téléphonique / cartes de crédit.....merçi lamet - 18 Feb 2010..
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..what to do when the recording comes on about lowering your credit card rate to hit the pound key 7 times and that will stop the calls.
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..QUOI FAIRE lorsque le message enregistrer joue ...
peser 7 ou 8 fois le bouton (#)
----------------------------------Ne JAMAIS DIVULGER VOS NUMÉROS DE RIEN VIA LE TÉLÉPHONNE ....

Reverse Look-up: White pages says:
This number is an unpublished landline based in Oshawa, On.

these people are calling my work place aleast 2 times a week ...have spoken to a pearson directly and have repeatly asked to be removed from their list ...i still get the calls ...how do these people get a phone line to run a business from yet we have no way of knowing who they are or anyway of contacting them...its not right ...the last time they called  i asked to speak to a manager and the nasty rude person  told me that would not happen today and hung up on me !!!