Visual voicemail lets you see a list of your messages and choose which one to listen to or delete, without having to wade through all of them. A badge on the Voicemail icon tells you how many unheard messages you have. The first time you tap Voicemail, you're prompted to create a voicemail password and record your voicemail greeting.
Listen to a voicemail message. Tap Voicemail, then tap a message. To listen again, select the message and tap . If visual voicemail isn't available with your service, tap Voicemail and follow the prompts.
Messages are saved until you delete them or your carrier erases them.
Delete a message. Swipe or tap the message, then tap Delete.
Note: In some areas, deleted messages may be permanently erased by your carrier.
Manage deleted messages. Tap Deleted Messages (at the end of the messages list), then:
Check voicemail from another phone. Dial your own number or your carrier's remote access number.
Update your greeting. Tap Voicemail, tap Greeting, tap Custom, then tap Record. Or, to use your carrier's generic greeting, tap Default.
Set an alert sound for new voicemail. Go to Settings > Sounds.
Change the password. Go to Settings > Phone > Change Voicemail Password.