
Page 14  Introduction to Your Treo™ 180 Comm unicator
Jog rocker Enables you to navigate on your communicator with just one hand. You can 
use the jog rocker as an alternate method to perform a variety of tasks, 
such as adjusting the call volume level on your phone. The jog rocker 
functions change based on whether your communicator’s wireless mode is 
on or off and which application you are using.
To use the jog rocker, roll the dial up or down, press it in and release it, or 
press and hold it. 
Contrast 
Control
Opens the contrast control screen where you can adjust the appearance 
of your communicator scre en for the clearest screen  display. See page19 
for instructions.
Microphone Functions as the mouthpiece when you use the wireless phone features of 
your Treo.
Scroll buttons Displays text and other information that extends beyond the area of the 
communicator screen. Pressing the bottom scroll button scrolls down to 
view information below the viewin g area, and pressing the top s croll button 
scrolls up to view the information above the viewing area. The scroll 
buttons also enable you to navigate between records in an application and 
to adjust the volume during a call.
Application 
buttons
Activates the applications that correspond to the icons on the buttons: 
PhoneBook, Date Book Plus, Blazer (or another web browser installed by 
your wireless service provider), and SMS Messaging. See page 168 for 
details on reassigning thes e buttons to activate any app lication on your 
communicator.
You can also use these button s in combination with Option   to activate 
other applications. See Ch apter 4 in this guide for details.
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::: If your communicator is turned off, pressing any application button 
turns on your communicator and opens the corresponding 
application.
Keyboard Enables you to type letters, numbers and symbols on your communicator. 
See Chapter 2 to learn how to enter information. 
Communicator 
screen
Displays the applications and information stored in your communicator. It 
is touch-sensitive and responds to the stylus.