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.
“Hello, this is Morgan Freeman. I wish I could tell you that Morgan Freeman was available to take your call. I wish I could tell you that, but this is no fairytale world. Morgan Freeman is gone now; to where I cannot say. But if you’re lucky, I might just call ya’ back. Get busy leavin’ your message.”

“Hi there! You’ve reached [XYZ Company]. We are unable to take your call at the moment, but we want to hear what you have to say. Please leave your full name, contact details and reason for reaching out, and one of our staff members will get in touch with you within 24 hours. Thanks!”
After creating, the Voicemail Greeting, you can test it by calling to your number from another phone, and see if it is playing correctly or not. Open the Phone App. On the lower screen, tap on the Voicemail option. Select Custom, with this option, you can record the personal voicemail greeting on the iPhone. Tap Record, to start recording the voicemail greeting message on the iPhone. Greeting samples are given in this article below, Once you are done with recording, tap Play to listen. Lastly, if everything is alright, and custom voicemail recording is perfect, then tap Save.