Call Blocking from Anonymous Numbers
I had this call from some anonymous number at 3am in the morning. There was some voice of russian accent woman. When I picked up the phone and listened to that voice for few seconds, it got cut. I am not sure if it was Russian or Ukrainian IVR system. But it got cut in specific tone.After that I checked my balance in the morning. And found that I got 30Rs deduction suddenly for that number. I didn't called that service or did anything to get that call. I had that call and it got my money reduced.
As the phone number is prepaid, I don't use it for 3G access or any form of data. So I have no idea how my 30 Rs got deducted. I inquired to Vodafone and they said, it was reduced because call was made from my side. I don't know how this racket managed to deduct my money.
Any idea how to block such anonymous calls? Is there any registry or service that maintains list of numbers used by such rackets and they can filter before call comes in?