You might not be the kind of person who wants customers to go through long voicemails. If that sounds like you, here are a couple of short and sweet voicemail greetings that you can use to get your message across!
If your auto-attendant starts with the main menu of options, it needs to be clear and have the option to speak with a human-being if the question isn’t answered by the list of options. Try something like this:

When you’re closed for the holiday, it’s good to forgo your usual out-of-office greeting for a custom holiday message. Keep it cheery and brief, and be sure to let callers know when you’ll resume normal business operations.
The above section details types of phrasing to avoid; however, it doesn’t detail what users should NOT say on their greeting. Though this is a bit loaded, as there are hundreds of combinations of things one shouldn’t say, there are some key components users should ALWAYS avoid. a. Forget About Slang: You should strive to be as professional and welcoming as possible in your greeting. While this may steer you towards using slang, in an attempt to make callers comfortable, it’ll most likely work against you. As a professional, your demeanor, tone, and speech should be clear cut and well articulated. Using slang undercuts this and works against you. b. Don’t Even Think About Profanity: This is a no-brainer. Never, under any circumstances, curse in your greeting EVER! c. Keep Your Sentences Clean, Don’t Ramble: Introduce yourself and give your caller specific direction. Avoid long diatribes detailing tangent thoughts. Keep it simple and quick. d. Always Return Your Calls: It’s important for callers to feel they are valued. Nothing dissolves this quicker than a greeting that doesn’t stress this. For example, “I’ll call you when I can,” “If I don’t return your call, please call back”—these phrases are terrible and completely destroy any good will you may have with a caller.