Music on Hold (MoH)
Music on Hold (MoH) is the business practice of playing recorded music to fill the silence that would be heard by callers who have been placed on hold.
The PBX has a default MoH playlist, you can add custom MoH playlists.
Note: The default MoH files are distributed under the Creative Commons
Attribution-ShareAlike3.0 license through explicit permission from their authors.