(416)477-2487 rang our home number but did not leave message. Our caller display and last number redial showed (416)477-248-790 but is not listed anywhere as that number. Who are these people ?

Summary:  SCAM ARTIST

I received a call from this number also.  The call display showed "INTERNAT'L CALL".  I picked up and said "Hello".  It was a silent call (nobody on the other end).

Last week I received a similar call from 647-724-8790 (same "INTERNAT'L CALL" in display).  See http://800notes.com/Phone.aspx/1-647-724-8790

I believe it's a scammer who has faked out (spoofed) his call display.

Both 647 & 416 are Ontario area codes.