Like I said earlier, 99.9% of voicemail greetings are exactly the same. Go outside the box and create a hilarious voicemail greeting. Comedic messages create a memorable experience, encourage word of mouth and keep your callers on the line. Seems like a winning formula to me.
You need to portray a sense of confidence, authority, and respect. If you would like to leave a voicemail message for an inmate, you must first have a Prepaid Account. I was trying to put together the puzzle of my life and realized there's a piece missing - you.

“Greetings, this is Science Officer Spock. Currently there are no lifeforms available to take your call but at the pre-arranged audio signal, please feel free to leave any verbal communication you feel is necessary. Live long and prosper.”
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.”