Though the PIXORD VOS is a standalone streaming voice system, it can also be integrated with the PIXORD NC as a voice module via connecting the COM port with each other. As a result, the PIXORD NC would be able to have sending streaming voice capability by communicating with the PIXORD VOS through COM port and streaming Video capability with its built-in feature simultaneously. In this configuration, it doesn't matter if you having setting a static IP Address to the PIXORD VOS since it uses COM port to communicate to the external. The schematic diagram below illustrates the installation for such a configuration:

Connect to the PIXORD NC:

Having completed the setup, you can power on the PIXORD VOS and check its power LED (red). If the PWR LED is constant lit, it means the setup is successful.

Note: Generally, you can setup the PIXORD VOS in both of the above two configurations concurrently because the PIXORD VOS can work in dual mode. It's able to not only sending streaming voice to the Ethernet, but also to the COM port at the same time.