This application is useful when your mobile is on silent mode and you missed calls. This app helps to notify your missed callers that you are busy now and will call them back, by sending a text message to them automatically. You can also configure the messages by adding modes to the add like meeting,lecture,etc. and one message with each when you press a button select mode then a list of added messages is appear, and you can select one of the mode for your silent profile. You can also Delete or Update mode by long press on list of modes. The app will notify you by notification that message has been send to the missed caller. App has one toggle button that will display application status on/off if u don't wanna send messages to the miss callers during silent mode then just put it to off. When you click on silent mode the app activated and ask you to configure(mode) if you select mode then it will send message of that mode otherwise it will send message of previously selected mode.