Ubee Interactive Glossary
Ubee UBC1301-AA00 Advanced Wireless Voice Gateway Subscriber User Guide • March 2017 92
Router
A device that forwards data between networks. An IP router forwards data based on IP
source and destination addresses.
RIP (Routing Information Protocol)
A protocol in which routers periodically exchange information with one another to
determine minimum-distance paths between sources and destinations.
RSVP (Resource Reservation Protocol)
A set of communication rules that allows channels or paths on the Internet to be reserved
for the multicast transmission of video and other high-bandwidth messages.
RTSP (Real Time Streaming Protocol)
A protocol used in the transfer of real-time streaming media such as audio and video.
SIP (Session Initiation Protocol)
A signaling communications protocol that is widely used for controlling multimedia
communications sessions such as voice and video over Internet Protocol networks.
SNR (Signal-to-Noise Ratio)
A measure that compares the level of a desired signal to the level of background noise.
SNTP (Simple Network Time Protocol)
A protocol for synthesizing the clocks of computing devices over networks.
STBC (Space-Time Block Code))
A technique used in wireless communications to transmit multiple copies os a data stream
across a number of antennas.
Subnet
A portion of a network that shares a common address component. On TCP/IP networks,
subnets are defined as all devices whose IP addresses have the same prefix. For
example, all devices with IP addresses that start with 10.1.10 would be part of the same
subnet. IP networks are divided using a subnet mask.
Subnet Mask
Combined with the IP address, the IP subnet mask allows a device to know which other
addresses are local to it, and which must be reached through a gateway or router. A
number that explains which part of an IP address comprises the network address and
which part is the host address on that network.
Telnet
A network protocol used on the Internet or a local area network. Provides bi-directional
interactive text-oriented communications using a virtual terminal connection.
TACACS (Terminal Access Controller Access-Control System)
A remote authentication protocol used to communicate with an authentication server to
determine if the user is allowed to access the network.
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