Rollover Hunting is a feature that is managed by the Account Manager or Phone Manager. It allows incoming calls to your primary phone line to roll over to the next available line and, if al l lines are busy or not answered, the call can roll over to voicemail. It will hunt through all lines in the group once to find an idle line. You can configure multiple hunt groups and the number of rings before the call is routed to the next li ne. Each hunt group must have a minimum of two lines and a unique primary number. There are three hunt sequence options:
Business voicemail greetings aren’t difficult at all to optimize. What it all comes down to is being prepared, knowing what you and your customers need to make every interaction run smooth, making sure your message is easy to understand and clearly expresses your intentions, and remaining open and optimistic.

We actually know a top insurance sales guy who did a sales motivational message every day just like this, and people used to call just to listen to his thoughts.
You can fine-tune this similarly to how companies A/B test their websites, ads, call scripts, and anything else that requires a change. The more elements of a call you look at, the more likely you’ll be able to optimize your voicemail greetings. If you jump right into the greeting without saying “Hello,” go back and make your greeting more personal on the second attempt.