“Hi. You have reached (your name). I will not be available in the office starting (date) to (date). You can leave a short message if you wish, after the beep or if you require immediate assistance, you can contact my assistant (name). Thank you.”
Professional — Lets them know who they’ve reached, why their call has not been answered and when they can expect a return call.Personable — Lets them know their message has been received by a real person who values their call and will reach back out to them. Including humor and a personal touch is extremely important here (even if your industry prefers to be more “robotic” in their communications). What is the most professional voicemail message?

Consider for a moment how your phone is currently being answered. Professional courtesy is quite often not the standard for many college students. An abrupt "Yeah!" could be listed among the more courteous greetings. The more outrageous remarks will often buy you a major black mark in the professionalism category—even if it was your roommate answering your phone and acting crazy. A simple "This is ____" is always a pleasant change for a college student call. Make the change today, before the next (or first) employer phone call. If you have a landline, you should also encourage your roommate to do the same.
All of these questions are pertinent to their call, and it’s important that you answer any that is relevant to your specific situation. Make sure not to drag on too long going through all of the info.