voicemail notification appears in the status bar, and the 
icon appears on the main menu showing the number of new voicemail messages.
When you have voicemail waiting, a voicemail notification appears in the status bar, and the icon appears on the main menu showing the number of new voicemail messages.
1. Touch and drag the status bar toward the bottom of the screen.
2. Touch New voicemail, and follow the prompts.
You can also touch Call > 
to check your voicemail.