While they are listening to your voice, they are internally deciding whether or not it is worth their time to continue or hang up. Look at your voicemail message as its own short advertisement.
Some voicemail greetings are too loud and distracting and some are so quiet you can barely figure out who you’ve called. Whoever sets up the voicemail greeting for a business should be a confident speaker. Here’s a pro tip—write out a script of what the voicemail greeting should say and practice it a few times before you record it. It will be well worth it in the end!

Business Intro – quick intro announcement heard by the caller before they speak with a business representative. Usually quite short and welcoming, introducing the business to the caller.
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.