Got a call from a very bad voip computer which was constantly cutting out. Couldn't even make out what they wanted but what little it got was something regarding CRA. Nice try! Hope this helps anyone affected by these calls.

Got the same thing, immediately deleted

Got the message twice today. The robot voice said the Attorney General will show up on my doorsteps if I don't  call them back in 72 hours.

Got the the same three times now

Call received from noted number saying it was Revenue Canada and once message rec'd I would have to return call immediately or be arrested pursuant to criminal code.  Checked telephone  and arrived to this site.