You don’t need to have your whole life story in your voicemail greeting, you just basically need them to know that they reached the right person and that you will be getting back to them as soon as you can. This is the part where people like to get funny, maybe by saying, “hey, I’m out and definitely avoiding you,” which is funny if your friends are calling, but not if someone you want to work for is trying to reach you.
Set up voicemail online The online voicemail Setup Wizard walks you through every step of setting up your voicemail. For more info about voicemail, check out the AT&T Phone for Business Voicemail (PDF, 6.28MB). Log in to myAT&T.If you don’t have a myAT&T account, register to establish your Member ID and password. From the Account Overview Page

VirtualPBX provides every extension owner in your company with custom routing. If the employee isn’t available, the call will go to the personalized business voicemail account for that employee as a result. In this way, each employee can have a business greeting for callers. Similarly, you can set up voicemail boxes for departments or your company as a whole. Even if the call goes to a phone that already has personal voicemail, we can make sure your business calls only go to your business voicemail system. People that call the employee’s number directly get personal greetings, those that go through VirtualPBX get a business greeting.
You can create a list of up to 32 phone numbers and have them forwarded to another phone number, voice mail or do-not-disturb announcement.