See also:

Air filtration system
Replace the filter element according to the replacement schedule as follows. This schedule should be followed to maintain the filter’s dust collection ability. Under extremely dusty conditions ...

Taking a phone call and declining an incoming call
To take a phone call: Press the OFF hook switch0 . To put an incoming call on hold: Press the ON hook switch briefly . To decline an incoming call: Press the ON hook switch for more than 1.5 sec ...

Car phone/cell phone and driving
CAUTION Do not use a car phone/cell phone while driving; it may distract your attention from driving and can lead to an accident. If you use a car phone/cell phone, pull off the road and park in ...