It will allow you to change the greeting from the regular one, and people can leave messages for you when you are not available. Apple's visual voicemail configuration is so easy on the iPhone. However, there are a group of people complaining that they forgot their voicemail password, not knowing how to reset voicemail password on their iPhones
When you get a voicemail, you can check your message from the notification on your phone. Swipe down from the top of the screen. Tap Voicemail ….You can call your voicemail service to check your messages. Open your device’s Phone app . At the bottom, tap Dialpad . Touch and hold 1. How do you listen to your voicemail from a different phone? Call your 10-digit wireless number. When you hear your voicemail greeting, press the * key to interrupt it. If you reach the main voicemail system greeting, enter your 10-digit wireless phone number, then interrupt your greeting by pressing the * key. Can I listen to my voicemail without setting it up?

HURRICANE TIP: If you lose electricity, phone service, & wifi, just update your voicemail message greeting to notify family and friends of how you are and keep them updated. You can change your voicemail greeting as many times as you want and can do it without data!
One of the first things you might want to do when you set up a new Samsung Galaxy S10 is to record a voicemail greeting. Unfortunately, it's not obvious how to do that, so many people make do with the default greeting.