Got the same call here today. No-one on the other end. When I researched google it said it was from the National Diabetes Dept in Ottawa.  This showed up on a PDF file for the national Diabetes Dept. Could be a misprint, I suppose.

that phone number used to be at 130 slater st. unit 760. it was for diabetes then... Could the new tenant have taken the number??  there are phone survey companies in that building, well one at least, "elemental data".I don't think this is them though...

I get calls from this number every day and when I answer, nobody replies.  Getting extremely annoying so I screened them out, whoever they are.  Can't be that important, otherwise they would talk to me.

I am getting these phone call also.  I am with Bell.  I answer and no one is at the other end.  I call back and the line is always busy.  I have an option with bell to block phone numbers so that is what I will do.

The guy's a scammer, he called me representing Microsoft today, a couple weeks ago I had him going really good, and I asked him how the kids were, since I could hear them fighting in the background.

The phone calls are coming from somewhere in this square. Laurier/Somerset(running east/west) and Elgin St/Queen Elizabeth Drive(Running North/South)

I warned him next time I'm reverse tracing the full way and coming to his house. Lets see if he calls again.