Ideally, a business should have a complete set of messages for every phase of their call flow from beginning to end. While voicemail greetings are an important part of the phone system, there need to be recordings for everything leading up to the voicemail as well (assuming there are other steps in the call flow).
As a matter of fact, some reports that have explored the decline of voicemail say the service is really only used by two types of people anymore: older parents and business people. But that still doesn’t lessen the annoyance of the receiver when they have to listen to the voicemail from mom and pop or the used car sales guy.

A voice-over actor will not simply read from the script given to them. They study and understand the content in details so that they are able to deliver your message properly and also customize the tone of the message according to your requirement. For instance, if the objective is to sell your product or service, then the message can be in a more persuasive tone.
This is also where your automated call software such as Drop Cowboy and others comes in handy. If you don’t have one already, it’s worth investing in moving forward. With your call software, there’s an effective flow of outbound and inbound calls. This means you have a record, too, of all the return calls you’ve gotten in the order of priority they’re made. This doesn’t just create a smoother system for your calls, but it also ensures no return call is ever left ignored.