Samsung SGH-D407ZKACIN - Manual (Page 21)

Section 2: Understanding Your Phone 21
Navigation Key
Use the directional keys on the navigation key to browse menus, sub menus, and
lists. Press the up or down navigation when jumping to highlighted links on the web.
Each key also acts as a shortcut to launch applications. The following illustration
shows the default settings for the navigation keys, but all navigation keys are user
definable. To set the shortcut key functions see "Using Shortcuts" on page 28.
Speakerphone Key
Use the speakerphone key (located on the right side of your phone) in conjunction
with the left soft key
to switch from using the earpiece to the speakerphone
during a call. Use the volume keys (located on the left side of your phone) to adjust
the volume.