Samsung SEPA920WSAQST - Manual (Page 37)

Section 2A: Your Phone: The Basics 15
Phone Basics
18. Voice Command/Speakerphone Key allows you to say
commands to perform common functions supported by your phone
or turn the speakerphone on or off during a call. Press and release
the inner key to initiate speakerphone mode.
19. Camera Key allows you to capture a picture when you are in
camera mode.
20. End Key (Power) ends a call. Press and hold this key for two
seconds to turn your phone on or off. While in the main menu, it
returns the phone to standby mode and cancels your input. When
you receive an incoming call, press to enter silent mode and mute
the ringer.
21. Right Softkey allows you to select softkey actions or menu items
corresponding to the bottom right line on the display screen.