I have a confession to make: I haven’t recorded a new voicemail greeting since 2014. In the past four years, I (hopefully) have 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. Obviously I need toupdate it. And if you haven’t changed your voicemail greeting in over a year, you’re likely in the same boat. After all, a professional voicemail recording boosts your credibility, makes you seem more competent, and encourages whoever’s listening to it to continue the relationship. A relatively unprofessional one — like mine, for instance — does the opposite: It encourages prospects, recruiters, and potential connections to run in the other direction. With that in mind, I’ve written 18 unique voicemail greetings for every situation. Pick your favorite, practice a few times, then record your new voicemail.
"People started raising their hands. They started volunteering, 'Please take my voice mail away. It's annoying, it's redundant, I never use it anymore,' " she says.

That's why I would definitely resist any temptation to leave any kind of joke message, even if it seems very clever, suitable or relatively benign. People might love it the first time they hear it. The eighth time is definitely going to annoy them. Fa5t3r December 4, 2013
Remember to offer your apologies for not being available to answer their call and to sound genuine.