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.
If done tastefully, you can promote your products or services on your voicemail greeting without sounding pushy. In fact, it’s a great way to keep customers up-to-date on company events, sales, and other news. Be sure to keep it short and have fun with it.

I, I have only 10 seconds to explain to you how to leave a message on one of these machines. Now… now, the first step is, is the most important step there is. Liam Neeson has been acting for decades but it was his recent role in the hit movie Taken that caught the attention of a younger audience.
21. "Hello, you've reached [your name, the office of X company]. The team is currently out of the office, but we'll be back on [date] stuffed with good food and eager to speak with you. Leave your name, number, and — if you're so inclined — your favorite [holiday dish, Thanksgiving tradition, etc.]"