Which of the following descriptions about video-conferencing capabilities isincorrect?

Modern video-conferencing technologies improve codec efficiency and network adaptability. With H.265/HEVC and vendor-optimized super-resolution and coding algorithms, bandwidth can be greatly reduced (A) and even low-bitrate 4K transmission (B) can be achieved. Strong anti–packet-loss capability (D) comes from techniques such as FEC (forward error correction) and intelligent retransmission. However,satellite communication requires dedicated terminals and stable satellite channels and is affected by weather and geography, so it cannot be “connected at any time” as a general capability of the video-conferencing system. Therefore, C is incorrect.