Whether you’re out for the day or are off for the week, the first rule of an out of office voicemail greeting is: let callers know when you’ll be back! You’ll save them the frustration of continuing to call and yourself the hassle of listening to redundant voicemails. It’s also a good idea to set the expectation of whether you are answering messages while you’re away, and who they can reach for assistance in your absence.
Funny voicemail greetings are just that. These types of greetings have no rules whatsoever. They’re just for funsies, so make those you care for the laugh. Most of the time, they are personal, but certain businesses can use them as well. Perhaps you operate a theatrical costume company that specializes in clown memorabilia, or perhaps you run a business that sells pranks, such as plastic puppy poo, and whoopee cushions.

Hello, you've reached 555-1552, the Apartment at the End of the Universe. Please leave your message, name and number at the sound of the tone. Keep your hands, feet, extremities, and obscenities inside the car at all times. Enjoy your ride.
nothing too crazy in terms of actual content, but my brother and i recorded our message in irish accents a while back, which was quite fun. we fooled plenty of people (i'm sure had any true irish folk called, they'd have vomited at the poor accent impersonations!) Aug 1, 2004 19,801 8 The City of Culture, Englandshire I did one once where I just said "hello?" - then paused for a few seconds and continued ... Quite a few people said they started talking before being interrupted by me telling them to leave a message! I've heard messages like that before – although they've kept on saying "hello?" a few times (louder and louder) to make you think that they've actually answered the phone but they can't hear you.