7.) End on a high note! You don’t necessarily need to say “Goodbye” at the end of a voicemail, because you didn’t really talk to anyone. Instead, try something like, “Look forward to chatting with you!” Use the word “with” instead of “to.” It sounds less like the person is going to receive a parental or boss “talking to” and more like two people who are eager to connect with one another on the phone. It’s a subtle difference, yet it’s a gracious one!
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.

Website: https://www.samplemessages.com/leave-messages/leave-phone-messages.html
While Ross panics about his friends slowly getting dressed for his big gala, Monica hacks into Richard's answering machine and leaves a mortifying message ("I don't know, maybe I'm getting my period or something")which then becomes his outgoing recording.