Many of the IPTV and related networking terms have been supplied courtesy of Wikipedia and can be further accessed by clicking on inserted links.

  • ADCCP Advanced Data Communication Control Procedures is a bit-oriented data link layer protocol used to provide point-to-point and point-to-multipoint transmission of data frames that contain error control information. It places data on a network and ensures proper delivery to a destination. ADCCP is based on the IBM's SDLC protocol. The HDLC by ISO and LAPB by ITU/CCITT are based on ADCCP.
  • AES - Advanced Encryption Standard
  • (AFD )Active Format Descriptor
  • AJAX (asynchronous JavaScript and XML), is a group of interrelated web development techniques used for creating interactive web applications
  • AVDN - Active Video Distribution Network
  • AVE - Active Video Editor
  • ATA - An analog telephony adapter, or analog telephone adapter, (ATA) is a device used to connect one or more standard analog telephones to a digital and/or non-standard telephone system such as a Voice over IP based networ
  • ATIS - Alliance for Telecommunication Industry Solutions
  • ATSC - Advanced Television System Committee Standards - a format which will replace the analog NTSC television system[1] by February 17, 2009 in the United States,[2] and August 31, 2011 in Canada.[3] It was developed by the Advanced Television Systems Committee
  • BBS Bulletin Board System
  • BSS - Business Support Systems
  • CA Conditional Access used over satellite links
  • CAS Conditional Access System
  • CBR Constant Bit Rate
  • CDN - Content Delivery Network -the Akamai Network
  • CMS - Content Management Systems
  • CPC Cost Per Click
  • CPM Cost Per Million - per one thousand impressions
  • Default route, also known as the gateway of last resort, is the network route used by a router when no other known route exists for a given IP packet's destination address. All the packets for destinations not known by the router's routing table are sent to the default route. This route generally leads to another router, which treats the packet the same way: If the route is known, the packet will get forwarded to the known route. If not, the packet is forwarded to the default-route of that router which generally leads to another router. And so on. Each router traversal adds a one-hop distance to the route.
  • DCM Digital Content Manager for Headend Systems
  • DES - Data Encryption Standard
  • DHE - Digital Head End Architecture
  • DID Direct Inward Dialing - Direct Inward Dialing (DID), also called Direct Dial-In (DDI) in Europe, is a feature offered by telephone companies for use with their customers' PBX systems, whereby the telephone company (telco) allocates a range of numbers all connected to their customer's PBX. As calls are presented to the PBX, the number that the caller dialled is also given, so the PBX can route the call to the desired person or bureau within the organization. "DID" numbers have particular relevance for VoIP communications. In order for people connected to the traditional PSTN network to call people connected to VoIP networks, DID numbers from the PSTN network are obtained by the administrators of the VoIP network, and assigned to a gateway in the VoIP network. The gateway will then route calls incoming from the PSTN across the IP network to the appropriate VoIP user. Similarly, calls originating in the VoIP network will appear to users on the PSTN as originating from one of the assigned DID numbers.
  • DRM - Microsoft Digital Rights Management
  • DTF Digital Transport Formatter
  • DSL technologies use sophisticated modulation schemes to pack data onto copper wires. They are sometimes referred to as last-mile technologies because they are used only for connections from a telephone switching station to a home or office, not between switching stations.
  • DRM - Microsoft's Digital Rights Management system that protects the program material from the source to the subscriber.
  • DSLAM - a Digital Subscriber Line Access Multiplexer, often pronounced dee-slam) allows telephone lines to make faster  and available connections to the Internet.
  • DTH - Direct to Home
  • DVB-H  a European mobile TV technology that has been funded in part by the EU
  • DVB_T Digital Video Broadcasting - Terrestrial
  • DVH-H - Nokia's DVH-H mobile TV standard
  • EFM - ethernet in the first mile
  • EIRP - Effective Isotropic Radiated Power (EIRP) is the output power when a signal is concentrated into a smaller area by the Antenna
  • EMP - Microsoft® Office Enterprise Project Management solution.
  • Encapsulators are objects which transparently monitor other objects.
  • EJBs - Enterprise Java Beans
  • ESS - Ethernet Service Switch
  • ETV - Enhanced Television Programming
  • FTTx  - Fiber Optics Related - fiber to the premises (FTTP), fiber to the home (FTTH), fiber to the node (FTTN),
  • FLBnn (File Load Balancing neuronal net) ensures optimized content distribution and high reliability. GRID TV
  • (GbE or 1 GigE) Gigabit Ethernet is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second, as defined by the IEEE 802.3-2005 standard. Half-duplex gigabit links connected through hubs are allowed by the specification but in the marketplace full-duplex with switches is the norm.
  • GUI - Graphic User Interface
  • Headend- is the program origination point for IPTV distribution.
  • (HDLC) High-Level Data Link Control is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO).
  • HFC - Hybrid fibre-coaxial
  • IFF - IPTV Interoperability Forum
  • IFLs - Fiber-optic L-Band interfaculty links
  • IRD - Integrated Receiver Decoders
  • Interenet Protocol IPv4/IPv6, Examples: DVMRP, Distance Vector Multicast Routing Protocol, ICMP, Internet Control Message Protocol, IGMP, Internet Group Multicast Protocol, PIM-SM, Protocol Independent Multicast Sparse Mode, PIM-DM, Protocol Independent Multicast Dense Mode. Additonal,IPSec, Internet Protocol Security, IPX, Internetwork Packet Exchange, RIP, Routing Information Protocol, DDP, Datagram Delivery Protocol.
  • Internet transit consists of two bundled services: the advertisement by an Internet service provider (ISP) of routes to a customer's Internet Protocol addresses to the other ISPs who constitute the rest of the Internet, thereby soliciting inbound traffic from them on behalf of the customer; and the advertisement of a default route, or a full set of routes to all of the destinations on the Internet, to the ISP's customer, thereby soliciting outbound traffic from them.
  • Interoperability is a property referring to the ability of diverse systems and organizations to work together (inter-operate).

  • ITU - International Telecommunications Union

  • JSP - Java Server Pages

  • JNDI - Java Naming Directory Interface

  • LLC - Logical Link Control. The LLC provides addressing and control of the data link.

  • LNB - Low Noise Block as un low noise block converters.

  • MAC Media Access Control

  • MPEG - Moving Pictures Expert Group

  • MPEG-2 HD - MPEG-2 is widely used as the format of digital television signals that are broadcast by terrestrial (over-the-air), cable, and direct broadcast satellite TV systems. It also specifies the format of movies and other programs that are distributed on DVD and similar disks. As such, TV stations, TV receivers, DVD players, and other equipment are often designed to this standard.

  • MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally-specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Codec) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued.

  • MPTS - multi program transport stream

  • MSOs - Multi Service Operators - in the strictest sense any cable company that serves multiple communities is thus an MSO, the term today is usually reserved for companies that own a very large number of cable systems, such as Comcast and Cox Communications in the US or Virgin Media in the UK.

  • NABTS North American Broadcast Teletext Standard

  • NAP - Network Access Pprotection
  • NPOC - national play out center
  • NSS - Network Storage Services
  • NOC - Network Operating Center
  • ODN - optical distribution network
  • ONT - Optical Network Terminal - is an media converter that's installed by Verizon outside of your home, during the FiOS installation. This device will convert fiber-optic/light to copper (which is installed in your home, currently).
  • OLT - optical line termination  (mobile networking)
  •  (JSA) API (JSR 158) - Java Stream Assembly
  • OSS - Open Source Software
  • OSI The Open Systems Interconnection Basic Reference Model (OSI Reference Model or OSI Model for short) is a layered, abstract description for communications and computer network protocol design. It was developed as part of the Open Systems Interconnection (OSI) initiative and is sometimes known as the OSI seven layer model.
  • OSP Distribution - Out Side Plant
  • OTDR - an optical time domain reflectometer is an optoelectronic instrument used to characterize an optical fiber
  • PAL - short for Phase Alternating Line, is a colour encoding system used in broadcast television systems in large parts of the world.Television encoding systems by nation. Countries using the PAL system are shown in blue. (20th century)
  • PEG - Public, Educational and/or Governmental channels
  • Personalization Server - The Personalization Server is a complete solution for building personalized e-commerce sites.
  • PKCS-11 crypto-logic protocols - Cryptographic Token Interface Standard
  • POC Play out Center
  • PON - A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an Optical Line Termination (OLT) at the service provider's central office and a number of Optical Network Units (ONUs) near end users. A PON configuration reduces the amount of fiber and central office equipment required compared with point to point architectures.
    • Passive optical networks do not use electrically powered components to split the signal. Instead, the signal is distributed using beam splitters.
    • AON - Active optical networks rely on some sort of electrically powered equipment to distribute the signal, such as a switch, router, or multiplexer.
  • POS - Point Of Sale
  • POTS Phone - Plain Old Telephone Systems

  • PSAs - public service announcements

  • PSM - Property Set Management provides schema details to personalization server subsystems such as User Management and Rules Management.

  • PSTN - public switched telephone network is the network of the world's public circuit-switched telephone networks, in much the same way that the Internet is the network of the world's public IP-based packet-switched networks. Originally a network of fixed-line analog telephone systems, the PSTN is now almost entirely digital, and now includes mobile as well as fixed telephones.
  • PVR -  personal video recording 
  • QoS Quality of Service Router - High performance and advanced routers, usually associated with IP networks.
  • RHE - Regional Headends - provides content acquisition, content management, subscriber management, packaging and delivery to the carrier's distribution network. An effective RHE is also the access point for other revenue generating services including ad insertion and video on demand.
  • RSS - Really Simple Syndication
  • RSTP Real Time Streaming Protocol, developed by the IETF and created in 1998 as RFC 2326, is a protocol for use in streaming media systems which allows a client to remotely control a streaming media server, issuing VCR-like commands such as "play" and "pause", and allowing time-based access to files on a server.
  • RTD Real Data Transport (RDT) is a proprietary transport protocol for the actual audio/video data, developed by RealNetworks in the 1990s Commonly used in companion with a control protocol for streaming media like the IETF's based RTSP protocol.
  • RPOC - Regional Play of Center
  • SECAM - also written SÉCAM (Séquentiel couleur avec mémoire, French for "Sequential Color with Memory"), is an analog color television system first used in France
  • SHE - Super HeadendsHeadends for the acquisition, management, encoding, origination and satellite distribution of TV content
  • Tier 1 network is an IP network (typically but not necessarily an Internet Service Provider) which connects to the entire Internet solely via Settlement Free Interconnection, commonly known as peering. Another name for a Tier 1 network is "transit-free", because it does not receive a full transit table from any other network.
  • TV-Edit workstation - a content management and program scheduling. GRID Tv
  • TV-Serve finally delivers the content to the end user in a bandwidth according connection conditions.
    Interfaces to common editing systems and business software, e.g. billing or DRM systems, come along with the platform. Gateways to dedicated environments, e.g. for multicast in a network capable of and to other transmission technologies such as DVB-S or mobile networks, elevate the platform to the universal Internet - TV platforn. GRID TV
  • SIP SIP Communicator is an audio/video Internet phone and instant messenger that supports some of the most popular instant messaging and telephony protocols such as SIP, Jabber, AIM/ICQ, .NET Messenger Service and others like Yahoo and IRC.[citation needed] SIP Communicator is completely free software, and is available at no cost under the terms of the GNU Lesser General Public Licens
  • SOA - Web Services and Service Oriented Architectures
  • SPTS - self-contained single program transport stream
  • STB or IRD - Set Top Box or Interactive Receiver Decoder
  • TDES - Triple DES - Data Encryption Standard
  • UGC - User Generated Content
  • UMTS  - Universal Mobile Telecommunications System is one of the third-generation (3G) cell phone technologies, which is also being developed into a 4G
  • US  Encoding & encryption - Videocipher (Motorola), PowerVu (Scientific- Atlanta), and/or DVB (Tandberg, Scopus and others).
  • UDP - User Datagram Protocol
  • VOD - Video on Demand

  •  VRAD - video-ready access device

  • Web 2.0 is a term describing the trend in the use of World Wide Web technology and web design that aims to enhance creativity, information sharing, and, most notably, collaboration among users. These concepts have led to the development and evolution of web-based communities and hosted services, such as social-networking sites, wikis, blogs, and folksonomies.

  • (WST) World System Teletext

  • X.509 certificate storage and retrieval 

  • XDSL is similar to ISDN inasmuch as both operate over existing copper telephone lines (POTS) and both require the short runs to a central telephone office (usually less than 20,000 feet). However, xDSL offers much higher speeds - up to 32 Mbps for upstream traffic, and from 32 Kbps to over 1 Mbps for downstream traffic. xDSL Refers collectively to all types of digital subscriber lines, the two main categories being ADSL and SDSL. Two other types of xDSL technologies are High-data-rate DSL (HDSL) and Very high DSL (VDSL)