The FEC forward error correction algorithm is an algorithm that sends redundant data at the sending end and recovers the code stream based on the redundant data at the decoding end.
SIP is an application layer protocol that is independent of the transport layer protocols below and can be hosted on different transport protocols, such as UDP/TCP/TLS/SCTP, currently Most commonly used
TCP. ( )
H.323 defines the H.323 Gateway GateKeeper, Multipoint Processor (MP), but does not define the Multipoint Conferencing Control Unit (MCU).
Background lighting can improve monotonous backgrounds; The background light should be dimmer than the main light to highlight the human image and create a sense of depth. ( )
In H460 networking, the H.245 TCP connection of the private network terminal is established with TS.
An MCU can belong to only one service area, but a service area can have multiple MCUs.
RTCP is a real-time transport protocol that can be used as a way to detect and control data transmission, and this protocol cannot be upgraded to a large multicast (multicast) network.
In multimedia services, RTP is used for real-time datagram transmission and RTCP is used to detect the quality of service for an RTP session.
TESTED 23 Feb 2025
