A word of warning: These greetings will not do you any favors if you’re in the midst of a job hunt or work in a conservative industry. Always remember your target personas. If there’s a chance they won’t appreciate your sense of humor, opt for a straightforward greeting instead. “This is Bond. James Bond. Okay, it’s really [your last name]. [Your first name] [your last name]. I’ll get back to you as soon as I’m done helping M16 save the world — which will probably be tomorrow at the latest. Have a good day.” “Hmm. Gryffindor … No, Ravenclaw. Yes, you definitely belong in Ravenclaw. *Pause.* Okay, you haven’t reached the Sorting Hat — it’s the voicemail of [your name]. Please leave your name and number (and just for fun, the Harry Potter house you think you belong in) and I’ll return your call as soon as possible.” “Hello! You’ve gotten the voicemail of [your name]. Leave your name, contact info, and the answer to the eternal question ‘Which came first, the chicken or the egg?’ Anyone who gets it right will receive a call back.”
You can’t call someone back if you don’t have their number. It seems basic, but it’s easy to forget. So a quick reminder can go a long way.

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.
Using concise and simple words in your scripting helps ensure callers can comprehend what is being said. Although a complete on-hold message can be quite lengthy, it should include concise and to the point single messages. Aim to get each message across in around 35 to 40 words. Remember, what may read great in written word doesn't necessary sound great said out aloud.