Answer or decline a call
To answer an incoming call, press the call key, or open the phone. To end the
call, press the end key or close the phone.
To decline an incoming call, press the end key or close the phone. To reject
an incoming call when the phone is closed, press and hold the volume key.
To mute the ringing tone, press the volume key when the phone is closed,
or select Silence when the phone is open.