2017 NEC 645 for Information technology equipment room states it is for a room with information techonology equipment. Going to definitions, 'IT' equipment manipulates data, voice, video or similar, but does not process communications. Communications equipment transmits audio, video, data along with its power equipment. How do you process voice, data and not transmit it? I have not seen an IT room that does not recieve or transmit data, so are all communications rooms now?