Relevant Source Extract — Huawei Training Material, PDF page 27

Extensive Audio and Video Ports. Input and output of multiple video sources, supporting multi-screen connection. Various of audio and video ports, compatible with mainstream audio and video devices.

Technical Deep Dive

Huawei CloudLink Box 300 is a modular video conferencing endpoint containing a hardware audiovisual codec. The codec compresses locally captured video for network transmission, decodes received streams, and supports the appropriate conferencing media protocols. Its H.265 implementation enables high-definition and 4K30 conferencing capabilities under the documented configuration.

The Box 300 differs from an integrated video bar because its camera, microphone, loudspeakers, and display are external peripherals connected through supported audiovisual interfaces. This modular arrangement permits custom room designs with particular camera locations, microphone coverage, or multiple displays. A CloudLink Camera 200 or suitable microphone might be included in a completed meeting-room solution, but it is not physically built into the Box 300 itself. Engineers should not mistake the complete solution bill of materials for the components integrated into the endpoint enclosure. Among the options, only the codec is built in. Therefore answer A is correct, not 'All of the above.'

For presales sizing, the selected signaling platform, media-processing engine, endpoint population and expected peak conference concurrency must be dimensioned independently. Huawei SMC performs centralized administration, Switch Center provides registration and call control, and the MCU supplies the media services needed for multipoint conferencing. The selected software release, server model, licenses and applicable endpoint capabilities determine the actual production limit.