Follow the steps to change the default settings on Windows Mobile rugged devices:
- Exit the app completely by choosing Menu > Exit. (Otherwise, the application will overwrite all changes.)
- On the device, locate ptt.config file in “Application Data\Zello Enterprise” folder.
- Copy the file to a PC.
- Open the file in a text editor and edit attributes — make sure to preserve the original structure.
- Save the changes.
- Copy the file back to the device.
- Start the application.