“Hi, you’ve reached [your name] at [your company]. I’m unavailable right now — probably helping [type of company] get [X results, e.g. ‘double their leads in 60 days,’ ‘hire the best and brightest engineers,’ ‘convert 40% more customers.’] Leave your name and number, and we’ll discuss how your company can see similar results.” “Hello, this is [your name] at [company]. Thanks for calling. Please leave your name, number, and reason you’d like to chat, and I’ll get to back to you ASAP.” “Hi, you’ve reached [name] at [company]. If you need a quick response, please shoot me an email at [insert email address] and I’ll be in touch by EOD tomorrow. If it’s not urgent, leave me a message with your name and number. Have a great day.” “Hey, this is [your name]. If you’re calling for [X reason], please [contact so-and-so] or [go to our website, send me an email]. For all other inquiries, leave your name and a brief message and I’ll call you back within [one, two, three] business day[s].” “Hello, you’ve reached [name] at company. I’m unable to come to the phone right now. Leave your name and number, and I’ll return your call as soon as I’m free. Thank you.”
Hello! This is [Nick on the West Coast Sales Team at LinkedPhone]. I am currently on vacation until [Friday, April 22nd] with limited access to email. If you require urgent assistance, please contact my lieutenant [Harold Kisp at 415-555-1212 or [email protected]]. Otherwise, please leave a message and I will return your call when I’m back in the office. Thank you and I look forward to chatting!

Hello, this is John’s answering machine reminding you that yesterday was the last day of the previous period of your life. After the beep you can tell me how it was, or leave some other, informative message. Thanks.
The other day, I was leaving a message, and the voicemail system cut me off. It seems I exceeded my 90 seconds of allotted time. No, I didn’t call back. I figured the man got the gist of the message, so I left the ball in his court.