Where ICT with voice and video connects to other ICT with voice and video, its documentation must state the main specifications by which video interoperates, using either a mutually agreed set meeting the total conversation requirements or ITU-T H.264 (version 10 or later, constrained baseline level 3 or above) and, where codecs are negotiated, H.265 and VP8 to avoid transcoding.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.