User manual
3.1.4. Volume buttons
Volume buttons give you easy access to adapt over time to a proper volume of
sound. It refers not simply ringer or media, the phone also keeps track of the
volume level separately in headphone, microphone and speaker.
Media volume: When listening to music, videos and phone calls, use the buttons
on the side of the phone to adjust the volume. For information about avoiding
hearing loss, see Security Information.
Ringer volume: Use the Volume buttons to control the volume for the ringer and
alerts. When you press and hold the volume down button, your phone will switch
to silent mode.
Alarm volume: Use the Volume buttons to set the volume for alarm. The alarm still
plays a sound when the phone is in silent mode.
Call volume: When making or receiving phone calls, use the volume buttons to
adjust the volume of the call.
* You can also adjust the volume (except call volume) in [Settings] > [Sound & Vibration].