See also:

Ringing volume
In phone mode, go to Phone menu Phone settings Sounds and volume Ring volume and adjust the volume by turning VOL. Save the setting by pressing EXIT. ...

Manual connection
To connect a phone other than the one that was most recently connected or to switch between cell phones that are already paired with the hands-free system, go to Phone menu Change phone. ...

Cleaning the BLIS camera lenses
In order to function optimally, the BLIS camera lenses must be kept clean. They can be wiped clean with a soft cloth or wet sponge. CAUTION • Clean the lenses carefully to avoid scratching. • ...