Use Enhanced Push to Talk (EPTT) to make and receive calls.
INSTRUCTIONS & INFO
To setup and use AT&T EPTT from the main screen, press the OK button to access the Menu screen.
Highlight AT&T EPTT, and then press the OK button.
Highlight PTT, and then press the OK button.
Highlight On, press the OK button, then press the Left softkey (OK).
When you turn on PTT the side programmable key is automatically set to launch EPTT, press the Left softkey (Yes).
To open PTT, press and hold the Side programmable key on the left side of your device.
Review the AT&T EPTT end user license agreement, if you agree press the Right softkey (Accept).
Highlight Yes, then press the OK button. Note: It may take a few minutes for the activation to complete.
Once activation is complete you can view a tutorial or select Skip tutorial to access the PTT home screen. Note: After activation push the PTT button from any screen to open the PTT application.