The extension users may want to make their voicemails more personalized and professional depending on presence, you can set personalized voicemail greetings for each user. Upload an extension voicemail greeting Log in to PBX management portal, go to Extension and Trunk > Extension, edit the desired extension. Click Voicemail tab. In the Voicemail Greeting section, click Greeting Management. In the pop-up window, click Upload. Select an audio file to upload.
Many of these sites offer to write your voicemail script for you, but you’re welcome to write your own. Whatever you decide, there are many options to suit your needs.

A general voicemail greeting is what callers will be greeted with if you are unable to answer the phone at work. It is the everyday greeting, used as the default, unless you have set up a temporary greeting, such as an away message while you're on vacation, or a special message during a holiday.
The only problem I have with the voices is that the French and Spanish ones are really hard to understand. It’s almost like the voices are speaking English words based solely on French and Spanish phonetic rules, instead of sounding like English in a French or Spanish accent. Either way, it was a jolly good time, and I recommend that you at least play with the app, if not actually use it on a regular basis.