HUD 3.0 now comes with a Windows command line interface for interacting with 3rd party software. You can now perform a variety of functions on your local HUD client via direct calls. The types of function calls you can make are below:
| Command | Format | Description |
| empty | HUD3.0.exe | Bring HUD to Front |
| call | HUD3.0.exe call [phone number] | Make a call from HUD |
| online | HUD3.0.exe online [custom presence message] | Connect HUD into online mode |
| away | HUD3.0.exe away [custom presence message] | Put HUD into away mode |
| offline | HUD3.0.exe offline | Go offline |
| dnd | HUD3.0.exe dnd [custom presence message] | Put HUD into DND mode |
Each command is invoked using the full path to the HUD3 application on the user's machine.
Example: Typing C:\Program Files\Fonality\HUD3.0.exe in the Windows Command Prompt would bring HUD to the front of all other running applications.