Xperia XA2 with Android 9 disconnects a call as soon as it connects

[Android Central Question]

I have just bought an Xperia XA2 with Android 9 installed on it. When I make a call, it disconnects as soon as the other phone answers. (The receiving phone rings once then stops and gives a "missed call" message.}
Also the sound settings keep popping up for no apparent reason.

 

[Rukbat]

Bring the phone into your carrier. Either they can fix the problem, or they can replace the phone.

 

[B. Diddy]

Welcome to Android Central! Does this also happen in Safe Mode? https://www.hardreset.info/devices/sony/sony-xperia-xa2/safe-mode/

Please register on this forum, which will allow you to engage in discussion more easily, as well as post images. https://forums.androidcentral.com/ask-question/409154-join-android-central-community.html