Share your experience!
Xperia 1's call volume too low
Sonido de llamada muy bajo en Xperia 1
I've edited your post as this is an English only forum, you can use Google Translate to reply and/or post.
I haven't experienced this, by any chance does your phone has a protective film, glass, or case that it's blocking the speakers and/or mic?
It has no protector, I have performed several tests and all are negative, however the sound of the notification tone is very high.
No tiene ningún protector, he realizado varias pruebas y todas son negativas,en cambio el sonido del tono de notificación es muy elevado.