Random facts could include their favorite movie, vacation spot, candy, or television show. Regardless of what you choose, it will surprise your caller and more than likely make them leave a message if they were considering hanging up.
Thank you for calling. You have reached (Your Name) at (Your Business). Please leave your name, number, and a brief message and I’ll return your call as soon as possible.

The business answering machine greeting you use should be fairly short and to the point, though you can use it as a way to demonstrate what your business has to offer. Your overall tone in the message should be professional and indicate to callers that though their call has been missed at that moment, they are important and you plan on contacting them as soon as possible. Within this, however, you should not indicate that you are talking to someone more important than the caller. Your business answering machine greeting should also be customized in any way you deem appropriate for your business and needs. Jotting down the greeting will prevent mistakes when recording it.
3.) Welcome to John Doe. Currently we can not answer your call personally, or you are calling us outside of business hours. Please leave us a message with your name and telephone number - we will call you back as soon as possible. Thank you and good bye.