This is optional, but you can also leave another form of contact on your voicemail, like an email, that the employer who is calling can utilize. This will show that you want to get back to them as quickly as possible, and you are giving them multiple ways to do so. This isn’t necessary, but can be a good step if you want to squeeze a little more into the voicemail without going overboard.
Some of us may still remember a time when voicemail was a blank canvas for pranksters and humorists. They would use voicemail greetings as a place to begin recordings as if they were answering the phone (“Hello? I can’t hear you… Just kidding! Leave a message…”) or to flash some personality with music or themed messages. Unless your business is a costume rental facility or joke and magic trick shop, it’s best to avoid this strategy. Instead, try to remember a few key points to focus on-

No one should be calling during the holidays, and yet some people do. When you’re out for the holidays, create a voicemail greeting that communicates the cheerfulness of the season while still staying professional.
“Hi, thanks for calling the office of (insert your name). I’m away from my desk or out of the office. Please leave your name and number, and I’ll return your call as soon as possible. If you need immediate assistance, please hang up and reach our customer support team at (insert phone number). Thanks, and have a great day!”