Choose your no-answer greeting from the drop-down menu next to If unanswered use greeting from: 8
That’s the simple structure of a voicemail greeting. Overall, your greeting should be professional, but the wording can vary depending on the situation. Check out a sample below.

One of the first impressions that potential clients have of your company is through your voicemail. If your greeting is half-hearted, outdated or just plain unprofessional, you’re not going to attract the business that you desire. Therefore, it’s important to ensure that your outgoing voicemail greeting is top-notch.
Solution: Make it easier for callers to reach a real person. For example, if you have multiple phone lines, Spectrum Business Voice offers you the option of setting up an auto-attendant that answers your business phone and provides callers with a menu of options—such as particular employees or departments. This way, callers are more likely to reach the people who can help them. A hunt group is another voicemail feature: If one employee does not answer their phone, it redirects calls to another phone line in your business and can keep trying all the lines you have. It will only direct calls to voicemail if no one answers their line.