Keep an application running in the background and switch to another application
To switch to another application, press and hold the key until the application switcher appears. Click an application icon. If the application icon that you want doesn't appear, click the Home icon and navigate to the application icon that you are looking for.
To return to the Home screen if you are not on a call, press the
key.
To return to the Home screen if you are on call, press and hold the key until the application switcher appears. Click the Home icon.
Note: If you press the key while you are on a call, you will end the call even if you have switched to another application.