Obviously, I need to update it. And if you haven't changed your voicemail greeting in over a year, you're likely in the same boat.
Hi, you've reached Sally Smith at Example Realty. We specialize in helping you find commercial properties in Northern New Jersey. I'm unavailable to take your call, but will call you back by this time tomorrow if you leave a message with your name and telephone number. You can also email [email protected] or tweet @SallyS.

What information do you have access to that they want? Highlight the gap between what they currently know and what they want to know.
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.