Visual Voicemail for iPhone 4 and 4S
Visual Voicemail is an application that allows subscribers to view caller and voicemail information and listen to voicemail messages in any order on their devices. Scroll through your messages, pick the ones you want to listen to, and erase them right from your device screen. You can call back, text and add to contacts directly from the Visual Voicemail screen.
For more details and setup instructions, please click here.