Tap Voicemail in the bottom right corner. 3. Tap Greeting in the top left corner of your screen. In the top left corner, tap Greeting to edit or change your outgoing voice message. 4. Tap Custom if you want to record a custom greeting. To record a personalized message, tap Custom. This will give you options to record a new one.
It’s important that your voicemail makes a good impression and conveys professionalism to anyone who calls. Here at UniTel Voice, we specialize in helping business owners set up a virtual voicemail system that not only helps them sound professional but also keeps them connected with voicemail-to-email and voicemail transcription (voice-to-text) technology.

3. Settings menu. To access your voicemail setting menu, press and hold the 1 key or dial 123 on your device dial pad. If this doesn't work, dial 1-805-637-7249, enter your 10 digit number and while the voicemail greeting is playing, press * (star key) and enter the password.
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.