Behavior of the Home key is determined by the Operator Mode setting. You can change this setting via the Device Assignments screen in the Teo UCM User Portal.
If Operator Mode is enabled, the Home key shows the first screen of multifunction softkeys. You can still access the default Home screen by tapping the Collapse softkey or by swiping to the right.
Pressing the Home key shows the default Home screen if Operator Mode is not enabled (the default setting).