AIM Dental Marketing® provides a complete turn-key package that works seamlessly with your existing phone system. Simply review our extensive library of dental on hold messages, then select up to 6 messages, adding any practice-specific information you would like. Our professional script writers review your input, and further customize the messages to your specifications. Once you approve your final message, our studio engineers create a customized recording for your exclusive use. We upload your approved audio file for easy download to your telephone system.
Regrettably for my purpose, the software requires that you add a "message on hold", which makes perfect sense for this devices intended purpose, if not for my own use. But I worked around the problem by recording a second of silence and then adjusted the software the effectively play only my cheesy elevator music.

Generic pop songs perform better than those with prosocial lyrics or instrumental music. It turns out people calling in with grievances don’t want to hear songs about helping the world, and stereotypical elevator music triggers anger when on hold for extended periods.
9. Queue Callback Message. What the caller hears when they request a callback from the queue. Sample Scripts: “You have requested to have the next available agent call you back from the queue.