802.1P and 802.1Q are the standards proposed by the inter-working task groups of the 802 standards committee. 802.1Q is the IEEE Standard for Local and Metropolitan Area Networks: Virtual Bridge Local Area Network (VLAN). 802.1P is the IEEE Standard for Local and Metropolitan Area Networks - Supplement to Media Access Control (MAC) Bridges: Traffic Expending and Dynamic Multicasting Filtering.
A device that is used in the periphery of the network to separate two different networks and to serve as a demarcation device
Basic Rate Interface
Call admission control
The process of connecting two or more MCUs to create a larger conference.
Coder-decoder, for digitizing voice and video. Compression algorithms can also be used during the digitizing process.
Class of Service
Compressed Real-time Transport Protocol
Direct Inward Dialing
Differentiated Services Code Point is an Internet Engineering Task Force (IETF) standard that uses six bits in the ToS (Type of Service) field of the IPv4 header to specify class of service for each packet.
Dual Tone Multi-Frequency
Address format used for H.323 devices
Enhanced Media Processor
Used for H.323 registration, call routing, and admission control
G.711 pulse code modulation (PCM) encoding provides 64 kbps analog-to-digital conversion using mu-law or a-law.
Video codec protocol
Video codec protocol
Standard protocol for audio, video, and data communications across IP-based networks
Alphanumeric identifier assigned to an H.323 video terminal
Command added to a Cisco gatekeeper for static inter-zone routing
Hot Standby Routing Protocol
IP Precedence uses the three precedence bits in the ToS (Type of Service) field of the IPv4 header to specify class of service for each packet.
Integrated Services Digital Network
Interactive Voice Response
Local Area Network
Low Latency Queuing is a QoS mechanism that ensures the timely queuing of critical, delay-sensitive traffic.
Multimedia Conference Manager
Multipoint Control Unit, used for video conferences containing more than two endpoints
Multiple Subscriber Number
Primary Rate Interface
H.323-to-H.323 gateway used for assigning QoS and security access
Public Switched Telephone Network
Quality of Service
Registration, Admission, and Status protocol
Resource Reservation Protocol
Real-time Control Protocol
Real-time Transport Protocol
Skinny Client Control Protocol
A digit string used to identify a service on an MCU or gateway
Grouping MCUs to obtain a larger number of multipoint conferences
Type of Service
Wide Area Network
Weighted Random Early Detection
Weighted Round Robin
A logical group of H.323 infrastructure components managed by a single gatekeeper
A digit string used to identify a group of H.323 devices