Bell-Canada CAN put you on their OWN Do not call list. Bell will first try to tell you toregister at http://www.the-cma.org/  Do not register. You can block sales calls at this site by NOT ticking off mail, only put in phone and fax blocking which means you don't have to put in any personal information other than a single letter in first and last name. Put in all your numbers and you are then on the Canadian Marketing Association's do not call list supposedly up and running in the "fall of 2008".If you want to block "spam postal mail" you can put your address in there.What is a concern of course is that the numbers registered will be grabbed by an overseas VOIP service and used to spam from overseas.

this number calls here frequently..unknown name on caller id

Bell clearly know about this problem why are they not doing anything about it.

The number is not traceable with canada411. ?they leave no message. I want them to stop calling.

Never leave message.
Because of call message light kills battery on portable phone

You people don't see what is going on here? Is Bell that hired these SP DATA to keep phoning you until you are forced to get the " call-block' for $5 a month ,how smart is that? that's why Bell will not do a thing about it! SMART  MARKETING DONT YOU THINK???