To enable visual voicemail on your Samsung, you'll need to check if your carrier supports this feature. Most major carriers do, but it's always a good idea to double-check. Once you've confirmed, you can download the visual voicemail app from the Google Play Store or your carrier's website.
The setup process is pretty straightforward: just follow the prompts to activate the service and you'll be good to go! You might need to enter a password or PIN to secure your voicemails, but that's a small price to pay for the convenience of visual voicemail.