After setting the number on your voicemail, you must also record a personal voicemail greeting. Follow the steps below. Start the Phone app. if you don’t see the numeric keypad, tap “Keypad” at the bottom of the screen. Tap and hold the “1” for about two seconds until the phone automatically calls voicemail. Immediately tap “3” to access voicemail settings. Listen to the options. On most voicemail systems, tap “2” to start the process to record a new greeting. The current personal greeting will play; then tap “2” again to record a new greeting. Say the greeting you want, and tap “#” when you’re done. To save the greeting, tap “1.” The personal voicemail greeting has been set. Hangup the phone. How to setup voicemail using a Visual Voicemail Applications
1. Open your Android’s Phone app. It usually looks like a phone receiver at the bottom of the home screen.

Android smartphones come pre-installed with the Samsung Visual Voicemail application.
I am and have been trying to set up voicemail for my iPhone 11 purchased at the Waycross store. This is not working for me. I got to the screen where I put in my password and where I was to set up a greeting. There were no instructions past that. I recorded a message but never heard a beep or confirmation that my voicemail greeting was complete. I have tried several time in succession to try and play the message but nothing happens. i just have greeting in the top left and when i record it and save it does not offer a voicemail message for a caller when someone calls