Don’t leave customers and colleagues on edge. If you say you’re going to call them back, follow up. If you tend to fall behind in this area, encourage them to email you or reach out in another way. Better yet, learn how to forward voicemail to email so you can access the message anywhere.
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.

A professional voicemail greeting is a vital component of your communication strategy. It can increase engagement with your clients, create rapport and leave a good first impression when you're currently not available to pick up the phone.
10. Keep It Upbeat. We’ve already got you smiling while you record your greeting, so now let’s talk about your wording. Avoiding negative words like sorry, unfortunately, and can’t goes a long away in making your voicemail a positive experience overall.