Music On Hold (MoH) Music on Hold is used for placing a call on hold/transfer or call queueing. This is turned on be default. The default action for Music on Hold (MoH) is royalty free music. This will play whenever a call is placed on hold or when starting a transfer. We recommend that you configure MoH to suit your needs - This can be music/announcements in any .wav/.mp3 file. INFO: Only the Business Group Administrator can configure MoH from theĀ  BG Admin portal.