Now, “Hello” is a great way to begin a greeting, but it does not a greeting make. If your business is answering the phone with “Hello” alone, call a company meeting pronto and nix that nuttiness. In fact, a plain “Hello” can be confusing to callers, and it’s likely to make them question whether they’ve dialed the correct number.
Another possible solution is to give callers who don’t want to leave voicemails other ways to reach you, such as by emailing, texting or visiting your website. “Solve the caller’s problem in the voicemail greeting,” Baldwin suggests. If your outgoing message is informative enough, he says, callers won’t even need to leave a message.

I can’t come to the phone right now because I’m down in the basement printing up a fresh new batch of 20 dollar bills. If you need any money, or if you just want to check out my handi- work, please leave your name, number, and how much cash you need after the tone. If you’re from the Department of the Treasury, please ignore this message.
Your voicemail greeting should be clear, succinct and to-the-point. You don’t have to put your clients through a sales pitch when they are trying to just get some information about your service or product.