For calls and messages
- In the app, open the menu with the top left icon.
- Tap "Options" below the number.
- From there, you can toggle calls and messages on or off using the corresponding buttons.
- Open the app and go to the "Voicemail" tab.
- Tap the microphone icon.
- Select a number, then use the toggle switch at the top to turn Voicemail on or off.