Once you enter the password of Voicemail, you can tap on "Done" button. Next, you have to type in your password again. Finally, tap on "Done" to finish password setup. Now Press and hold the number 1 from your phone to access voicemail. Part 2: How to Change and Record your Voicemail Greetings on iPhone
Key-in your voicemail password if prompted.Your voicemail messages should play shortly after.

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.
To change or record your voicemail greeting: From your: Wireless phone: Press and hold 1 or the Voicemail key. AT&T Wireless Home Phone: Dial 1 from your connected home phone. Enter your voicemail password if prompted. In the Main Menu, press 4 for Personal Options. Press 3 to Change Greetings.