I have a confession to make: I haven't recorded a new voicemail greeting in nearly a decade. Since then, I've (hopefully) become more articulate, poised, and self-assured. But hear my voicemail recording, and you'd think I was still new to the work world, a little unsure of myself — and probably not an authority.
With a wide variety of choices available, users are able to choose every aspect of the process—i.e. the provider (a business or a voice professional individually), the service, as well as the tools involved.

There are plenty of options for business voicemail messages, including professional greetings, casual messages, and even funny ones. Consider your brand voice and target audience to choose the tone. And include directions for those who call.
Hello, you have reached the dental office of Dr. X. We are busy assisting a patient now, but will call you back as soon as possible. Please leave your name, reason for calling, and your number. If this is an urgent enquiry, please call 911. In this case, the dentist is giving a reason for not being available and they’re providing a way to prioritize the patients who need the most help. They’re also leaving an emergency number for the most severe of situations.