A word of warning: These greetings will not do you any favors if you're in the midst of a job hunt or work in a conservative industry. Always remember your target personas. If there's a chance they won't appreciate your sense of humor, opt for a straightforward greeting instead.
We look forward to serving you so please leave your contact info, details and reason for calling after the beep. We will call you right back!

Always end with appreciation such as saying thank you. Another way you could end the call is to tell him you know he's busy but you'd appreciate a call back. Whichever way you choose to end your voicemail, make sure you smile as you say it. A mouth that is frowning has a different sound than a smiling mouth.
You may additionally want to bear in mind that people might be calling you from their cellphones, and a long message can use up someone’s valuable cellphone minutes. Some voicemail systems have the option of pressing a key like the pound key to immediately start recording a message; you may want to consider the funny or long message only if you have this option available to callers. Another point of consideration when recording an answering machine greeting is who is likely to call. If you’re job hunting, for instance, you may want to drop the funny salutation for a while, and use a more standard and businesslike greeting, unless you’re applying for jobs as a comic. Is Amazon actually giving you the best price? This little known plugin reveals the answer. Some answering machines utilize cassette tapes.