Odd call from (613) 927-9687 - left call back number -  when calling back they identified themselves as Canada Revenue Agency.  All on a Saturday morning - quite irate that I could not tell them what my call was about when I was returning their call.

I got the same message , I though some one is kidding, called back no response, CRA does not have my cell number too.

I just got the same message. My mother works for Revenue Canada and will be reporting this scam when she goes into work tomorrow.

Okay I just did some further research on this number/caller, and it is indeed a scam. For example, check here... http://800notes.com/Phone.aspx/1-(613) 927-9687 , dozens of people have identified this and reported it as a nuisance call.

Same here.  Just got one on my work phone.

I just got a call/message from this exact number as well. Automated voice, claiming to be CRA (Canada Revenue Service), sounds legit and official, but I've called the number now several times to see what it's all about but after several rings it redirects the call and I get a busy signal, every time.