How do you NOT know?Why would you want it off? Would you rather be using your phone and not know if you are in the middle of a call?
Ever hear of accidental dialing? Looking through your contacts list and click on call instead of text, then press the back button before realizing it's actually dialing..How do you NOT know?Why would you want it off? Would you rather be using your phone and not know if you are in the middle of a call?