How to set up voice mail for Iphone 4s?

I have Verizon if that matters.

Visual Voicemail
On iPhone, visual voicemail lets you see a list of your messages and choose which ones to listen to or delete, without having to listen to instructions or prior messages. Note: Visual voicemail may not be available in all countries or regions, or may be an optional service. Contact your carrier for more information. If visual voicemail isn't available, tap Voicemail and follow the voice prompts to retrieve your messages.
Number of missed calls and unheard voicemail messages appears on the Home screen Phone icon.
Setting Up Voicemail
The first time you tap Voicemail, iPhone prompts you to create a voicemail password and record your voicemail greeting.
Change your greeting:
1 Tap Voicemail, tap Greeting, then tap Custom.
2 Tap Record when you're ready to start.
3 When you finish, tap Stop. To review, tap Play. To rerecord, repeat steps 2 and 3.
4 Tap Save.

Use your carrier's default greeting
Tap Voicemail, tap Greeting, then tap Default.
Set an alert sound for new voicemail
In Settings, choose Sounds and turn New Voicemail on. The alert sounds once for each new voicemail. If the Ring/Silent switch is off, iPhone won't sound alerts.
Change the voicemail password
In Settings, choose Phone > Change Voicemail Password.

By the way it doesn't matter what service you have. Its all the same for your info.anyway to do this. You click on phonebook and then on the bottom it has contacts, recent calls, voice mail. Then you click it and create a password and please remember what that password is. And then your all set.

You dumb! I'm not even gne answer

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