Professional business voicemail greetings are significantly different from ones you record for individual use and complete your professional business image. They’re more generic in nature and designed to provide information to the caller while ensuring they leave a message. Where possible, explain when you expect to return calls. Typically, they’re recorded for the following:
Even in today's fast-paced world, customers don't like being greeted with an automated message. According to the New York Times, callers of a certain age are put off entirely if they are answered by a voicemail instead of a real person.

Rehearse or write down your message before recording it. Remember that old saying “practice makes perfect?” It’s certainly true when it comes to creating an electronic greeting. The more you’ve rehearsed, the easier the message will be to restate. If you don’t have time to practice, writing down the greeting before recording it – and then reading it aloud from the paper – may help you stay focused on the correct wording.
But people don’t like talking to robots. And IVR often forces people to listen to a lot of irrelevant information before they hear the option they’re looking for. And the thing they’re trying to do may not even be one of the choices!