6. Navigate to File -> Export Audio and save your voicemail on your computer as an .MP3. You should now be able to open the recorded voicemail in software like iTunes or Windows Media Player.
Open your Phone app. Tap Voicemail. Select Greeting. By default, your voicemail will be setup with your carrier's generic greeting. To record a custom greeting, select Custom. Tap Record to begin recording your voicemail greeting. When you finish recording, tap Stop. To make sure you're happy with your new greeting, tap Play.

Voicemails don’t necessarily have to be monotonous or extremely jazzy or funky. What you should be looking for is a balance between the two. Whenever you call someone and their voicemail greeting is playing, it tells you a lot about who they are, as a person. Which is why, you’ve got to put a little bit of “you” when it comes to voicemail. And the best part about all of this is, since you couldn’t come to the phone, at least the callers are having a good time listening to the message.
6. Adele Sings Hello as an Outgoing Phone Message. A great way to incorporate a fun voicemail greeting in today’s age is re-writing the lyrics to a current billboard topping hit. Ellen DeGeneres did just that when she asked Adele for a little favor; to sing a little ditty inspired by the number one song, “Hello.”.