Step 1: Click on your 'Profile Picture'

Step 2: Click on 'Manage Account'

Step 3: Click on 'Calls'

Step 4: Click on ' Configure Voicemail'

Step 5: Click on 'Record a greeting'

Step 6: A call will start and explain what you need to do to record your voicemail greeting.
When someone calls you you and leaves a voicemail you will get an email with the voicemail