If you would like to assign a Voicemail entry to your Main Account, please from your main portal refer to Main Menu -> Account Settings -> General -> Voicemail Associated to the Main Account. If you need to assign a Voicemail to a specific subaccount, you need to go to the Sub Accounts Edit page, following the route, Subaccounts >> Manage Subaccounts >> Edit, from the menu tabs. You will see at the bottom of the page the "Internal Extension Voicemail" option. Here you can set it.
We’ve mentioned the significance of relaying a simple, easy-to-understand message in your business voicemail greetings, but we need to talk about word choice now. Pay close attention to your word choice in your business voicemail greetings. Certain words trigger certain actions before a person realizes what you actually meant. Here’s a specific example of how word choice can lead to confusion between a client and accountant:

An even bigger benefit is that when using EVS7 software for pre recorded voicemail messages, you can start on the next call immediately. You don’t have to wait to complete a voicemail message. Just press the button and you’re on to the next call while the software is recording your pre-recorded voicemail on the other line.
For example, this is how Nextiva’s call analytics page looks like. You would need to track how many users hear each voicemail greeting and how they responded. Voicemail greetings with a higher score of customers leaving a message are working efficiently. Voicemail messages that are not even heard completely are a failure.