Press # to leave the greeting inactive or follow the voice prompts to activate the greeting.
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.

You should also research other people in the prospect’s organization. Selecting the right people, such as the prospect’s manager or department head, facilitates the ability to build rapport and adds a sense of urgency when you mention them in the voicemail.
It makes you look professional. Especially, if you are applying for jobs, calling agents for accommodation, enrolling in to courses, have your own business and so on, it’s important to have your Voicemail greeting set up& configured. You only need to do this once!