You can listen to the messages you've received on your voicemail. Before you can check your voicemail, you need to divert calls to your voicemail.
Call your voicemail
Tap the phone icon.
Tap and hold number key 1 to call your voicemail. Follow the instructions to listen to your messages.
Tap the end call icon.
Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.