I was wondering if there was an app that would make it appear that your phone was dead. For example, if someone sends me a text it will not show up as delivered, and if someone calls me it will go straight to voicemail? I am trying to avoid someone who is blowing my phone up but I do not want to have to keep my phone off. I've tried an app or two to block people, but txts and calls will still go through, they just dont pop up on my phone. Any help?