Ringtones, also known as ring tone or caller tune, are the sounds used by mobile phones to alert users when they receive an incoming phone call. A ringtone can be an audio recording stored in any digital audio file format - MP3, M4A, WAV or OGG - that can be played on a mobile device. The most common klingelton types are Realtones and MIDI ringtones, both of which are audio recordings stored in...