Whether you’re out for the day or are off for the week, the first rule of an out of office voicemail greeting is: let callers know when you’ll be back! You’ll save them the frustration of continuing to call and yourself the hassle of listening to redundant voicemails. It’s also a good idea to set the expectation of whether you are answering messages while you’re away, and who they can reach for assistance in your absence.
The bank blew past its goal of eliminating half of its voice mail boxes and to date has eliminated about two-thirds. Across the whole bank so far, that's over $8 million in annual savings. Coca-Cola recently made a similar move and only 6 percent of employees chose to keep voice mail.

That’s the simple structure of a voicemail greeting. Overall, your greeting should be professional, but the wording can vary depending on the situation. Check out a sample below.
On Air Recordings recommends you order professional voicemail greetings through their site, then describe the tone, approach, or voice direction you’re going for.