Just logged a complaint on the Canadian Do Not Call Registry.  If you have not already logged your phone number on the Do Not Call Registry, then this is one way to stop these types of calls.  On this same website where you register your number on the List, you can also log a complaint about a telemarketer such as this one.  I have just renewed my number on this list (it is good for a few years) AND I logged a complaint with the CRTC about this jerk.

This person has called me twice now and when i try to call back, it's a busy line.

Multiple calls from this number.Never leaves a message.If I happen to be on the phone then my cell starts ringing showing "Blocked"number.Call back does not work always busy.What can we do about this? Its quite frustrating

somene is calling and not saying anything

same kind of call did not answer myself answering party when asked about security said not interested, woman caller this time, unfortunately did verify name of houshold, will let local police know concerns

Someone just called very rude and starting swearing and acting stupid.