Website: https://www.sprint.com/en/support/solutions/device/change-your-sprint-personal-voicemail-greeting.html
Standard greeting with your name: "At the tone, please record your message to [name]."

By using the reset network settings, an effectiveoption to solve network related issues, you can fix allthese problems by simply resetting the networksettings of your iPhone as it will clear all the networksettings, current cellular network settings, saved Wi-Finetwork settings, Wi-Fi passwords, and VPNsettings How do you reset your voicemail greeting? From the Home screen, tap the Phone icon . Tap Voicemail then tap Greeting (upper-left). Greeting islocated in the top-left corner of screen. Tap Custom to record a greeting. Enabled when a checkmark ispresent. Tap Record to begin recording the custom greeting message. Tap Stop to end recording then tap Save. How do you change voicemail settings on iPhone? Go to the Phone app, then tap the Voicemail tab. Tap Set Up Now. Create a voicemail password, then tap Done. Enter your password again to confirm it, then tap Done. Select Custom or Default. If you choose Custom, you can recorda new greeting. Tap Done to save your greeting.
Go to menu, and click on messages. At the bottom of the screen, it should say options. Click on options. You should see a list of options come up on the screen. Click on the one that says voicemail. When you click on voicemail, it should call the automated voicemail. You should hear an automated voice giving you options. When you hear personal options, press the number that the automated voice said was for personal options. The automated voice should then list some personal options. When you hear `greetings,` press the number that the automated voice said was for greetings. The automated voice should list some greetings. When you hear `personal greetings,` press the number that the voice said was for personal greetings. Follow the automated directions from there.