Creating a professional voicemail greeting isn’t complicated, but you need to keep a few things in mind to ensure success. The following tips will help: Be friendly and welcoming - let your company's personality shine!; Have a clear voice, speak at a slow to moderate pace, minimize background noise; Ensure the greeting is human and approachable; Keep the greeting short and informative; Ensure the greeting doesn’t sound robotic or unnatural; Show your gratitude for the call by saying thank you; Manage expectations by clearly stating when the client can expect a callback.
5. Holiday Voicemail Greetings. Happy [X holiday]! You've reached [your name] at [X company]. I am currently out of the office, but please leave me your name, phone number, and the reason you are calling, and I’ll return your call after the holidays.

I’d also say that it might be helpful for this sales agent to be using a script to leave a message. Most of the time when I listen to voice mail, I don’t have a lot of time. Messages that sound like the sales person is fumbling for words make it very frustrating for the message recipient.
Another way to make up funny voicemail messages is to act like a device has come alive. For instance, you could say,"Hello, I'm Bob's hair dryer, and I've taken over because I'm way more interesting. If you'd like to leave a message for him and have your hair dried at the same time, just hold up the phone." Answering like an answering machine, a microwave, or refrigerator and using the functions of that device in the answer are easy ways to create a fun voicemail.