Informal voicemail greetings are those that don’t adhere to the rules of professional and business voicemail greetings. Here, you are free to just leave a simple greeting, or use it to show your more witty side. This style of greetings can be used for both home and business if you like, depending on the type of caller you expect. For instance, a novelty shop could probably create a rather informal message, using sound effects that represent the type of items they sell.
Those who know me know I can hold a conversation. I love people, and my desire to share with them carries over to leaving cell phone messages. Sadly, I know better than to leave long messages, and I have no excuse, but I tend to chatter on, and on, and on, enjoying a conversation with, essentially, myself.

“Hi. This is (name). If you are the phone company, I already sent the money. If you are my parents, please send money. If you are my financial aid institution, you didn’t lend me enough money. If you are my friends, you owe me money. If you are a female, don’t worry, I have plenty of money. Bye!”
Using your cell phone to record a voicemail message isn't always easy. Between remembering what to say and getting the right timing, it's tricky. But your phone does have a playback option, and it's easy to listen to and review your message. For some people, though, cutting off the end of a message is a funny way to trick people and catch them off guard. In most situations, callers won't know it's intentional and will think you're far less than tech savvy. Definitely not an impression I'd want to make.