Those teleco minutes/calls checkers are delayed about 24 hours, I learned that the hard way. If it does keep this up and you aren't charged, I think we would be interested.... .... .... ....in learning how to exploit this bug >.> As far as international calls go. Step one would be to remove/modify those contacts #s to prevent that. It would be different if it were dialing random numbers. Also you aren't running anything like Gizmo/Google Voice/Skype/etc. right? and lastly your name isn't John Connor is it? =p
Ok before freaking out, tell us your phone setup 1. Do you have it locked? Is there are possibility you might accidentally tapped a contact and call? 2. Are those contacts on the desktop? 3. What other applications have you got installed? 4. What firmware are you using? It seems like 'user's fault' than device fault. Would have expect alot more reports coming in about this if it was a wide issue. Ask your friends at what time the call was made, check phone recent call list + on carrier's website call log
Only if you install Crash Reporter, that it will send report of any crashes to Nokia to investigate.