If next time this number calls again with some obscene topics, just have some guts to keep this frick on line and use your cellphone calling police to trace him. it is federal offence to use pupblic communications for harrasing people.
Another suggestion is never to give your phone numbers when filling up forms when attending trade shows. I just got my new phone number and everything was OK, but this crap happened AFTER I filled registration form when attending Canadian Manufacturing and Technology trade show in Toronto.

Look, whoever call you by this number is someone who knows you. If you are using some sort of VOIP or  "Internet calling" and you want to hide your number with dialing prefix *67, the service will hide your number and at the same time will use (416) 642-0882 instead. this is a phony number

i've got a call today, didn't pick up, listen to the voice mail - nothing...i've heard a theory though - a wireless service provider makes the calls and charges you when you pick up (not sure but i think they charge as it was a minute or so), if you don't pick up your voice mail stores a message, even if there is nothing but silence, so when there are more then whatever messages in your plan - they charge you also, and it's not so hard i get like 7 empty messages a week (my limit is 3). and that might be cacked by the fact that the provider has no idea who/when/where called you. i might be wrong since i buy pay-as-you-go cards, and don't have any statements, but check yours...i also get calls from unknown, all 5-s or 0-s... pretty much every week, i wonder if those guys will get tired eventually ...

Got a call from this number, it was my mom. She was using Skype or some other VOIP service. It shows up as a local number, I guess that makes the call cheap or something.

This number was used to trying to scam me into cashing a fraudulent cheque in Canada.  They are not calling from Toronto but rather overseas.  When I wouldn't pick up from an unlisted number they called me from (416) 642-0882.  I did answer and it was this person who had contacted me earlier regarding cashing a cheque for him.

Weird.I got a call from this number last night around 8:47pm.  I missed the call.