Three softkeys are located below the iPECS phone's LCD, and are assigned pre-programmed functions that change during phone operation to offer you different features relevant to the current state of the phone.  For example, when you are on a call,  the softkey labels  change to offer you the ability to transfer the call, start a conference, end the call, and more.

If there are more than 3 features available, you'll see an arrow  in the label of the right-most softkey. Press the Right and Left directional keys on the 4-way selector button to view all of the available softkeys.  

When your phone is in an idle state, the following softkeys are available: