In a highly competitive graduate market even something like an unprofessional voicemail message could mean the difference between you getting selected for an internship opportunity or being rejected. There is no point in having an amazing interview and following up with a thank-you email to only let yourself down with an unprofessional sounding voicemail.
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.

Voicemail Script #8: The Professional Script. Some prospects need you to sound professional. All they want is a straightforward solution to their pain points. In such cases, you need to structure your voicemail to be precise and direct. Here’s an example of a professional voicemail script: “Hello, this is [name] from [company name].
Before the digital era, he says more than 80 percent of business lines had voice mail. Now, he estimates only a third of office phones have it.”For customers, even the most professional voicemail greeting is impersonal, and may even harm customer experience (millennials, in particular, avoid using voicemail altogether).