Os yw' r dewisiad "Defnyddio cloch addasiedig" yn alluog, gallwch ddewis ffeil sain yma. Cliciwch ar "Pori..." i ddewis ffeil sain drwy' r ymgom ffeiliau.
If the option "Use customized bell" is enabled, you can choose a sound file here. Click "Browse..." to choose a sound file using the file dialog.