Think through what you are going to say before you place the call. When men hear the beep, they often freeze up and forget what they wanted to say. If you want to be the go-to guy at work, then you have to exhibit competence on all levels. Don’t spoil your confident image by hemming and hawing and filling your messages with “uhhhhs,” and “ummmms.” If it’s a really important call, consider writing out what you want to say beforehand. If the person picks up, great, you now have some notes to remember what you wanted to talk about. If they don’t answer, you can leave a clear and concise message.
On the "Voicemail greeting" tab, click on the "Record a greeting" button to record the voicemail greetings. A voicemail's time is approximately is around 10 seconds, wait for it to finish. Once done recording, click on the "Stop" button at the center of the recording tab to end it.

You know what? I would shorten this greeting even more. Let’s make it simpler. Let’s make it shorter.
She said, “Hi Anne Marie, I’m wondering in how to leave a very good voice message or even set up my own voice message when I can’t pick up my phone. Thanks in advance.”