File a complaint with the FCC Online here:  http://esupport.fcc.gov/complaints.htm  These people should be shut down because they use automated machines and do not allow you to tell them to stop.  Their mailbox is "full."

I picked this call up by accident, as I was expecting someone to call.  When I just heard dead silence on the other line, I checked my caller ID and realized it was a dumb telemarketer.

Receive calls from a toll free number and then when called back to check we are charged an international call fee.  We are on the DO NOT CALL list but apparently it doesn't matter to this company.  I usually do not answer unsolicited toll free numbers, but when we receive numerous calls from a particular number I sometimes check to see who they are .  Do not do this as we have been charged international fees on our phone bill.

CALLS EVERYDAY... leaves no message. I called back requesting to be removed

It's a scam.  Shows (613) 216-2172 "Ontario" on caller ID.  They are tryomng to get your credit card information.  File an online complaint with the FTC here:
http://esupport.fcc.gov/complaints.htm

I got a call from this number.  first there was a recorded message saying that President Obama wants us to re-negotiate our mortgage then had options to press.  I pressed one and a girl on the line asked me if I was interested--I told her I had no idea who she was and she hung up.  I'm worried that this is a scam and others might be pulled into it.