The Feature-Related System Parameters screen does not display the Music/Tone on Hold field.
The first Source field on the Music Sources screen displays the value in the Music/Tone on Hold field on the Feature-Related System Parameters screen.
If the value in the Music/Tone on Hold field on the Feature-Related System Parameters screen contained music, the Music Sources screen also displays the port address.
The Music/Tone on Hold field reappears on the Feature-Related System Parameters screen.
The system displays the value from the Music Sources screen, in the Music/Tone on Hold field on the Feature-Related System Parameters screen.