After helping tens of thousands of companies set up voicemail systems, we’ve learned that there is no set of rules defining what makes a great business voicemail, but there are definitely some key points that you should aim to hit. Before you hit the record button for your voicemail message, take some of these tips into account:
The automated personalized greetings allow you to quickly create a voicemail greeting of your choosing that gets personalized to each of your callers. You no longer have to take the time to record individualized greetings, and, you no longer have to use your own voice in the greeting (it’s true, some users simply don’t like to use their own voice!). Never end up like Jason in this vidéo :

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.
If you select All Calls, you cannot select the other two options. You can choose to direct to voicemail with both When busy and When no answer options together. Reset a User's Voicemail PIN