I guess the do not call lists and robocall scams are not bearing fruit in the US so they are calling Canada. Unfortunately there was not a person on the other end and they can spoof phone numbers these days but it is annoying to get these on a cell phone. I have relatives in Texas and so answered the unknown number to get a recorded message telling me to call some other number or face immediate prison. I like to live dangerously so I will ignore their threats. Revenue Canada tends to be a bit more courteous than these scammers.