Videocentric - Glossary




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ADSL	Asymmetric digital subscriber line is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide.
Audio Conferencing	Audio conferencing is connecting a number of callers into the same conversation and can be made using analog telephones, ISDN telephones, mobile phones, or voice over internet protocol (VoIP) telephones or a combination.
AV	Audio Visual - refer to works with both a sound and a visual component, the production or use of such works, or the equipment involved in presenting such works.
Bandwidth	Bandwidth can be described as the amount of information that can be transmitted over a connection.
BRI (Basic Rate Interface)	Basic rate interface (BRI, 2B+D, 2B1D) is an Integrated Services Digital Network (ISDN) configuration defined in the physical layer standard I.430 produced by the ITU.
Call Centre Technology	Through call centres, customers are routed to appropriate people, contacts to be tracked and data to be gathered. It is generally a part of company’s customer relationship management. Today, customers contact companies by calling, emailing, chatting online, visiting websites, faxing and even instant massaging and vise versa.
Carbon Footprint	The amount of carbon dioxide, or its equivalent of other green house gases emitted by an individual, organization, event or product.
Codec	A codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal.
Conference Recording	A conference recorder captures and shares any video conference meeting, training or message. It enables you to stream the content to your computer for future use.
Data Sharing	Data-sharing is a term used to describe the simultaneous sharing of a document or application across a network.
Distance Learning	Is a field of education which enables aninstitution to deliver education to students who are not physically "on site".
Document Camera	Real-time image capture devices for displaying an object to a large audience. They are, in essence, high-resolution web cams, mounted on arms so as to facilitate their placement over a page. This allows a teacher, lecturer or presenter to write on a sheet of paper or to display a two or three-dimensional object while the audience watches.
Echo Cancellation	The process of removing echo from a voice communication in order to improve voice quality on a telephone call. In addition to improving subjective quality, this process increases the capacity achieved through silence suppression by preventing echo from traveling across a network.
Ethernet	A family of frame-based computer networking technologies for local area networks (LANs).
Firewall Traversal	Firewall traversal technology creates a secure path through the firewall barrier safely and seamlessly.
Frame Rate	The measurement of the frequency (rate) at which an imaging device produces unique consecutive images called frames.
Gatekeepers	A gatekeeper is a management tool for H.323 multimedia networks. Depending on the demands of a specific network, the gatekeeper overseas authenticity, authorisation, telephone directory and PBX (private branch exchange) services, as well as call control and routing.
Gateways	A gateway is a network point that acts as an entrance to another network. The gateway allows us to enter different networks on the internet so we can transmit data back and forth.
H.261	ITU standard for video coding for videoconferencing.
H.263	ITU standard for video coding within videoconferencing. H.263 offers better compression than H.261.
H.320	A commonly used video compression standard for videoconferencing over networks that provide fixed communication paths (such as the ISDN phone network).
H.323	This is also a top-level standard for videoconference systems. H.323 defines methods to be used on what are called packet-based networks (which are also called IP (Internet Protocol) networks) like a typical business, school LAN or the Internet.
H.324	The standards used to specify voice and video transmission over traditional analog phone lines.
IP	Internet protocol is a unique ID which disguises one computer from all the others in the world when connected to the internet. The IP is a series of numbers which is called your IP address.
IP Telephony	Internet Protocol (IP) Telephony is a general term for the technologies that use the internet protocol's packet-switched connections to exchange voice, fax and other forms of information.
IPTV	Internet Protocol Television (IPTV) is a system through which digital television service is delivered using architecture and networking methods of the internet protocol suite over a packet-switched network infrastructure, e.g. the internet and broadband internet access, instead of being delivered through traditional radio frequency broadcast and cable television formats.
Infrastructure	Video conferencing infrastructure is the back bone of the system that allows it to function. There are many components involved to making a system work for you and your business.
Interactive Whiteboards	Combine the simplicity of a whiteboard and the power of a computer with a interactive whiteboard. Interactive whiteboards bring interactivity to any environment.
Interoperability	Interoperability is a property referring to the ability of diverse systems and organizations to work together (inter-operate). The term is often used in a technical systems engineering sense, or alternatively in a broad sense, taking into account social, political, and organizational factors that impact system to system performance
ISDN	Integrated Services Digital Network (ISDN) is a telephone system network. The key feature of the ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system.
Kbps (Kilobits per second)	Is a unit of data transfer rate equal to: 1,000 bits per second or 125 bytes per second.
LAN	A local area network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an airport.
Luminance	Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.
Mbps (Megabits per second)	is a unit of data transfer rate equal to: 1,000,000 bits per second or 1,000 kilobits per second or 125,000 bytes per second.
MCU	A multi-point control unit (MCU) is a device commonly used to bridge videoconferencing connections.
Multi-Point	Multi-point is the term used to join multiple participants together into a single conference.
Network	A group of devices connected by communications facilities for exchanging information.
Packet	A packet is a formatted unit of data carried by a packet mode computer network.
Packet Switching	A digital network communications method that groups all transmitted data, irrespective of content, type, or structure into suitably-sized blocks, called packets.
POTS	Plain old telephone service (POTS) is the voice-grade telephone service that remains the basic form of residential and small business service connection to the telephone network in most parts of the world.
Router	A networking device whose software and hardware are usually tailored to the tasks of routing and forwarding information.
Server	A server is any combination of hardware or software designed to provide services to clients. When used alone, the term typically refers to a computer which may be running a server operating system, but is commonly used to refer to any software or dedicated hardware capable of providing services.
Streaming	In the context of video conferencing, streaming is the broadcasting of a conference, either point to point, or multi-point, to an audience who are not part of the conference.
Switch	A switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.
Telepresence	Telepresence is the experience of being present – an immersive video communications experience that allows you to meet with global participants as if you’re sitting in the same room.
Unified Communications	UC simplifies and integrates all forms of communications in view to optimise business processes and reduce the response time, manage flows and eliminate device and media dependencies.
Web Conferencing	Web conferencing is used to conduct live meetings, training, or presentations via the internet.

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