OnSIP’s enhanced music on hold allows each user to select their own hold music, so each caller gets different tunes depending on who put them on hold or which menu they came in through. (You can even change your hold music for the holidays or for a special event!) You can also record a customized hold message to engage your callers while they’re waiting on the line. This presents a great opportunity to advertise additional features of your business or inform your audience of a special sale or promotion.
No one calls customer support to chit chat. They call because they have a problem and are likely irritated enough to get on the phone and ask about it. Odds are they’re not alone, so there’s a bit of a wait before your team can answer. If you were answering support calls, what would you want your frustrated customer listening to in the moments before you pick up?

So what can we do to avoid inflicting further musical misery on our own customers while they’re patiently sitting on hold? We could just go back to playing a ringing sound, or an intermittent beep just to let people know they’re still connected, but that would be awfully dull. The best compromise is relatively simple electronic music that doesn't have too much going on as the ideal choice for hold music as it requires far less refined sound quality to get a decent rendition down a telephone connection.
The same goes with sales: You want your caller to be excited about talking to you.