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Terminology
Description
R
RAS
Registration Admission and Status: Registration, acceptance and status. A
connection is established between the node and the GK and a signaling set of
the GK management node.
RTCP
Real-time Transport Control Protocol: A protocol used to monitor the
transmission of data. Through this protocol, the receiver can detect whether
there is packet discarding and compensate for delay jitter.
RTP
Real-time Transport Protocol: It is a protocol defined by the IETF for transmitting
audio and video streams. RTP is established on UDP, and a time stamp is
defined in the header of the RTP message, so that the real-time transmission
and synchronization of audio and video are guaranteed. H.323 is based on the
RTP protocol.
S
SRTP
Secure Real-time Transport Protocol: A real-time transmission protocol with a
secure encryption mechanism is added based on the RTP protocol.
SSH
Secure Shell: A set of standards and network protocols that allow secure
channels to be established between local and remote computers. When users
log in remotely through a network environment that cannot guarantee security,
the SSH feature can provide secure information protection and powerful
authentication functions to protect the network from attacks such as IP address
spoofing and simple password interception.
SSL
Secure Sockets Layer: A security protocol that works at the socket layer. This
layer is located between the TCP layer and the application layer for data
encryption and decryption and authentication of related entities.
Dual Stream
It is usually the local computer desktop content displayed by the local venue in
the conference to the remote venue, such as spreadsheets, charts, slides, and
so on.
T
TCP
Transmission Control Protocol: A protocol in TCP/IP that decomposes data
information into packets for transmission via an IP protocol; performs verification
of packets received using the IP protocol and reassembles them into complete
information. TCP is a connection-oriented, reliable protocol that ensures the
correct transmission of information and corresponds to the transport layer in the
ISO/OSI benchmark model.
TCP/IP
Transmission Control Protocol/Internet Protocol
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