Hi, this is [your name] of [your business]. I’m currently unable to take your call. Please leave your name, phone number, and a brief message, and I will contact you as soon as possible. Thanks.
You have reached the , Strategic Air Command Nuclear Missile Storage Facility. We are unable to come to the phone right now. At the tone, please leave your name, number and target or list of targets and we’ll launch as soon as we can. And have a nice day.

The most engaging messages are slightly unique in nature. They combine a mix of clever scripting and music. Slight humour is often used to promote a product or service and is usually quite effective. It's also very important to choose both the written and spoken tone that appeals to the characteristics of your audience. If your target market is the younger generation, a script that includes slang words and is quite laid back would be an excellent choice. If your target market is primarily business professionals, then a more articulate choice of words would be more suitable.
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.