OPPO Find X3 Pro 5G
It's not possible to check my voicemail
Solution 4 of 6: The voicemail number isn't saved on your phone
You can save your voicemail number making it easy to call and listen to your voice messages.
Press the phone icon.
Press the menu icon.
Press Settings.
Press Voicemail.
Press the required SIM.
Press Advanced Settings.
Press Number.
Key in +447953222222 and press the confirm icon.
Press the Home key to return to the home screen.