3. "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]."
Nobody wants to play phone tag. Skip the back and forth by explicitly telling the caller to leave their name, number, and the best day(s) and time(s) to reach them. Your clients will appreciate you not wanting to waste their time.

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.
Creating solid business voicemail greetings requires a little finesse. You want to make the best impression and set the right tone. However, sometimes you need to break from the norm and create business voicemails that will do some of the work for you.