I don't think you can pair the device with the Moto G phone. I've checked the Specifications PDF provided by the developers, and there is nothing related to Android and mobile devices.
You can download it through the following link: http://www.startek-eng.com/tools/down.ashx?id=134&fields=pdf_files
This is what is says regarding Android devices and other platforms:
"If you are installing an application based on platforms other than Windows, such as Android or Linux, please refer to the documentation provided by the maker of the application program" - http://www.startek-eng.com/technology.aspx