Hi, this is Stephanie's answering machine. If you're the phone company asking for money, stop bugging her, she'll send it sooner or later. If you're a TV company advertising TVs, she already has a TV with every channel known to man, and several known to monkeys. If you called for any other reasons, please hang up the phone, start screaming, and run to the nearest shoe store. When you get there, ask them for a cheeseburger. (This probably won't help you, but we'll always have something to laugh about when we're bored.)
As mentioned above, alerting callers that they won’t be getting an immediate call back is of upmost importance for an entity’s reputation and a caller’s satisfaction.

It’s the way that people contact you when you are busy with other clients or customers, and cannot get to the phone. It is often the customers or clients first impression of your business or brand, you need to leave a great impression. The worst thing is for a first time caller, or even a returning customer, to get a short blurb like “Leave a message i’ll call you back”. Or, just a beep after the ring.
Rehearse or write down your message before recording it. Remember that old saying “practice makes perfect?” It’s certainly true when it comes to creating an electronic greeting. The more you’ve rehearsed, the easier the message will be to restate. If you don’t have time to practice, writing down the greeting before recording it – and then reading it aloud from the paper – may help you stay focused on the correct wording.