Call on caller ID called it back, got a bill for a call to Ottawahull, On

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

DIDN'T LEAVE A MESSAGE.i CALLED BACKED AND IT SAID THE VOICE MAIL WAS FULL.wILL NOT CALL OR ANSWER ANYMORE

Called me at 10:25 am. My v-mail kicked in and recorded dead air for 8 seconds.

When the phone rang, at 7:45 PM EDT today, I got a recorded message telling me about President Obama's mortgage assistance plan, and telling me if I wanted and was eligible for Federal Assistance, press "1"The woman who answered the phone had a faint Indian (or similar) accent.  She immediately started into her copy on "would you like to save money on your mortgage?"  When I asked why the US Federal Government would be using a phone number in Ontario CA, she said "I get that a lot.  Why do you say that?  I am in Sunny Southern California!"  I told her that Caller ID had given her away.I then asked which agency she represented.  She said it was "National Mortgage" but was not affiliated with the US Government.  I asked "so this is a private firm?"  "Yes, sir, it is."  I then informed her I am on the National Do Not Call list and did not want to be... well, called again, but at that point, she said "Have a nice day sir" and hung up on me.They call again, I will try to get an address.  Then my lawyer will be talking to them.  He's good.  And a violation of the DNC is a fine of up to $1000 per call, I do believe...

I have received over 50 calls from this number ...all dead silence when I pick up the phone. Appreciate any help how to get this to stop.