The calling card logic doesn't make any sense. Unless you live in Greater Toronto, why would you have a calling card where you will have to pay long distance? I have one to call family in the States but I use a 1800 one so THEY don't have to pay long distance.Suprisingly enough, I have never been called by these idiots, and I actually have a 416 number... Thank God for that though, that I've never been called.

Call from (416) 555-7777 (unused number) then hangup.
Caller id was "sialk.ca"

The CRTC will be involved next time.
My number is on the "do not call" list.

And repeat the same to mayor_miller @ toronto.ca

Just missed the call from (416) 555-7777 and they did not leave a message. Good thing the area code was suspicious did not look like one of USA area codes. I Googled it and got this site. Thanks to this site I will not waste my time with this scammer.

This number has called multiple times the last couple of days.  Mostly shows up as 'unknown name', but did come up one time as 'sialk.ca' who appear to be a long distance reseller.I finally did answer a call since the constant callbacks were annoying.  A woman asked for me by name and told me that Yak Communications asked her to call to give me a special money saving offer.  I cut her off indicating that the phone muber is on the National Do Not Call List, and asked they not call anymore.  Hopefully they will stop calling.

Online pharmacy wanting me to 'refill a prescription'.  When I informed them that this was my work number and I wished to be removed from his list, he hung up.