I did the same as "proactive". The company recording identified itself as:
Canadian Premier Life & Legacy General Insurance.
I phoned the # back and after asking for English/French selection, the automated menu asked if I wanted to add my phone number to the "Do not call" list to select menu option #1 and after confirming the phone number I typed in, it told me it would take up to 30 days to remove my number from the call list.

legacy assurance

Calls twice a day on my cell around the same time, never leaves a message. I answered once but just got dead silence. This has been happening for a month now

I've been having the same issue, getting calls from them every day which I do not answer.
If you call them back, press 1 for service in English, and then press 1 again to be added to the do not call list, you enter your number and should be good to go!

They call me everyday at ~10 AM. Usually silence at the other end.

This number has been calling my cell phone 1-2 times a day for at least 3 weeks.  How do I make them stop??