Why is the audio ringtone muted?

You may experience that the audio ringtone on the Xperia™ XA, Xperia™ XA Ultra, Xperia™ XA1, Xperia™ XA1 Ultra and Xperia™ L1 sometimes becomes automatically muted. This might occur if you haven’t restarted your device in a long time.

Try the following:

• Check that the “Do not disturb” feature is not enabled.
• Restart your device. After restarting your device the audio ringtone works as normal again.