How to set up voicemail on your Samsung Galaxy A51
To receive voice messages, you need to divert your calls to your voicemail.
Press the phone icon.
Press the menu icon.
Press Settings.
Press Supplementary services.
Press Call forwarding below the required SIM.
Press Voice call.
Press the required divert type.
901
901
Key in 901 and press Enable.
If you divert missed calls, you need to select a delay for the divert. Press the required delay and follow the instructions on the screen to select a delay for the divert.