On the iPhone, go into voicemail and tap "Greeting". Record a few seconds of something and tap stop. Before you tap save, use iFuntastic or SFTP to navigate to /var/root/Library/Voicemail on your iPhone. You'll see a file called "Greeting. amr". This is the audio you just recorded. Delete that file and replace it with your custom message which should then be renamed to "Greeting.amr". Tap "Play" on the iPhone to verify your message works. If it plays, tap "Save" and your custom message will be uploaded to AT&T's servers.
Looking for a custom Professional Voicemail Greeting for your business or office phone? How about an impressive, professional phone recording for your business cell phone, mobile phone, smartphone, auto attendant, automated receptionist or virtual answering service?It’s extremely important that your voicemail greetings make a great impression when customers call your office phone or business

As you can see by reading our article on how to write the best voicemail greetings, they’re a bit more complex than one might imagine. There are important elements that cannot be left out, as to do so could cost you valuable business contacts. We realize this, so have included a selection of more funny, professional, and personal greeting examples, in MS Word and PDF format. By using these voicemail greetings, you’ll be well on your way to craft a greeting that will be pleasant to hear, provide the correct information, as well as requesting the correct information.
Your business depends on customer engagement, and voicemail messages are a large part of that engagement. A voicemail is nothing more than a digital recording system, where messages are stored for you to retrieve later. Voicemail allows you to be able to connect with customers while you are away or during your off-hours, where they can drop off a message while you are gone. A voicemail greeting, on the other hand, refers to the message that your callers hear upon answering the phone.