Called at 8:19PM and hung up when I answered

I get a call from this number every night sometimes twice a night and hangs up.  I sure would like to know who it is.
if anyone finds out please post.  I would love to call them.

here is what I found out so far

Number: (613) 797-8761
Line Type: Wireless
Search Date: October 27, 2011, 8:59 pm
Preliminary Location: Ottawa, ON  
Served By: Rogers Communications  

If you want to find out more info you have to pay some company a service fee of $39.95 to give you the info.  I bet it's a scam by the numbers owner.