Go to your myAT account overview and open the My wireless section. Scroll to My devices & add-ons and choose the device you want to manage. Select Manage my device. Under Device options & settings, choose Reset voicemail password and follow the prompts.
Your voicemails should be clear, concise and understandable. They should also sound natural and be short enough to hold the attention of the contact. Here’s how to get it right.

As Dan tells us, "This is the only strategy I’ve ever seen consistently work—but when they call back you'd better have a question ready!"
Arguably the most intimidating factor when leaving a voice mail is the fact that once you leave the message, "in one take," there is no taking it back. That is why, especially in the business world, an overwhelming amount of people revert to email rather than leaving a voice mail message. Especially in a technologically advanced world, email or text messages are now used as a primary form of communication. Although there is a good argument behind opting for the written word over the spoken one, an email can lack the human touch, the emotion and enthusiasm in a voice, that can often times generate a better response. In fact, there is no impact that compares to delivering a clear, concise, professional message through your own unique human voice.