Wow this would be amazing! Has our beloved N9 garned such popularity that there are attempts to hack it? Jokes aside, I've never heard of this scenario from anyone yet...Maybe search the number that was being called on google and see if its a known scam call? You said you got a Nokia N9 with pr1.3; AFAIK that's not how its usually sold new so did you get it second-hand? If so, its always advisable to do a clean full flash before using it...