Friends and colleagues speak to each using first names only. So do people of authority. They do not call each other and leave voicemail messages asking for Mister, Miss, or Mrs. Therefore, when you call a person you want to do business with and you leave a voicemail message, refer to them by their first name only. Don't say mister, miss, or misses. Don't say their last name. Begin your voicemail message by saying only "hi/hello" followed by the person's first name. Or, you can even forget the "hi/hello" and just say the person's first name. That is how you show confidence and authority and separate yourself from weak salespeople.
Funny Voicemail Greetings. Composing these types of greetings are fun, but they aren’t applicable for some situations. You may make a funny voicemail greeting for your own personal voicemail box. However, it’s not appropriate for professional or business phones. Here are some humorous examples for you: You have reached [mention your name].

Is your refrigerator running? You better go catch it! Corny jokes like this don't work anymore...and won't work in your voicemail greeting. Saying things like, "Hello, you've reach the machine that lives inside Mark's cell phone. Leave a message and I'll tell him!" are really unappealing and aren't even funny.
Voicemails don’t necessarily have to be monotonous or extremely jazzy or funky. What you should be looking for is a balance between the two. Whenever you call someone and their voicemail greeting is playing, it tells you a lot about who they are, as a person. Which is why, you’ve got to put a little bit of “you” when it comes to voicemail.