Normally, background music is played at a lower volume than the prompts, but the application can determine the volume at which the music is played, and can even play the “background” music louder than the prompts. (Blueworx Voice Response ensures, however, that the combined volume of prompts and background music does not exceed the maximum volume for your telephone network.)
The volume of the prompts can be changed during the course of the application, and can fade in and out gradually. While the music is fading in or out, the application can either wait or continue with the next action. If the application continues with the next action, and the next action is a PlayPrompt, the prompt will start while the music is fading out, giving a voice-over effect.
The action of one application using a music channel does not affect the way other users of that music channel hear the music.