Settings can be adjusted for the following categories in a call.
・Audio output settings (the volume that you hear)
・Audio input settings (the volume that others hear)
・Waiting sound settings (the volume of sounds for those who are waiting to join)
・Room entry sound settings (decide whether a sound effect is played when somebody joins or leaves the call)
▷ Turn high audio quality mode on or off
▷ Decide whether or not to show in the call history of the device