Voicemail is a voice message that a caller leaves when the person called is absent or is busy with another conversation. The voicemail feature acts in a way similar to the old answering machine, but with the main difference that instead of the voice message being stored on your answering machine, it is stored on the service provider's server, in a space reserved for the user called a mailbox. It is not very different from email, save that the messages are voices instead of text.

Features: 

Besides recording and playing sounds back, you can do the following:

How To - Check Voicemail

How To - Voicemail Controls

Voicemail Manager