11-09-2023 05:22 PM in
@royshel You may well need to contact your network. However there is something you can try before doing so to see of it makes any difference.
**61*321**00# Replace 00 by number of seconds you wish ring to last and tap the Make call Button.
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My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.1,Android 13 .