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The Full Service-VDSL Committee (FS-VDSL) was founded in July 2000 with the aim of rapidly specifying a low cost, high capability end-to-end multi-service network based on VDSL Frequency Band Plan 998 which can be quickly and economically deployed to enable customers, focusing principally on consumer market, to benefit from competition. It was a non-profit international organization based in Switzerland. FS-VDSL was closed, according to its statutes, after 3 years of activity. Its specifications, downstreamed to ITU-T Study Group 16 became international standards as Recommendations H.610 and H.611.
At closing time, FS-VDSL was composed of 106 members, including Telcos, Telecommunication manufacturers, chip manufacturers, service providers.
The FS-VDSL Specifications are composed of 5 parts :
The Full Service VDSL Specifications were published on June 5, 2002. This means that anybody can access them from this web site, that any vendor can implement them, provided they comply with IPR rules, and that any operator can use them to provide services on their network.
This forum has therefore achieved the first objective foreseen when the FS-VDSL Committee was set up in 2000. The normal result should have been to wind up the forum on expiry of its work. However, the FS-VDSL specifications are only private documents, with no legal basis and despite their technical value, they cannot be referenced in official procurements in the same way as recognised standards - only official recognised standards have such status.
The Telecommunication Standardisation Sector of the International Telecommunication Union (ITU-T), a multi-governmental entity which is part of the United Nations, has now facilitated this forum to join their efforts to promote global standards. The FS-VDSL Management Committee has agreed to form a specialised group tasked with publishing ITU-T specifications or Recommendations based on the work done so far.
This group has been accepted by the ITU-T management as the FS-VDSL Focus Group. The creation of the Focus Group was formally approved by Study Group 16 at its meeting in October 2002. The parts 2 and 3 of the specifications was reformated by the Focus Group as Recommendation H.610 and part 5 as Recommendation H.611
The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications and Information Communication Technology such as X.509 for cybersecurity, Y.3172 for machine learning, and H.264/MPEG-4 AVC for video compression, between its Member States, Private Sector Members, and Academia Members. ITU-T is one of the three Sectors of the International Telecommunication Union (ITU).
The Open Systems Interconnection model is a conceptual model that characterises and standardises the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology. Its goal is the interoperability of diverse communication systems with standard communication protocols.
Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access.
Very high-speed Digital Subscriber Line (VDSL) and Very high-speed Digital Subscriber Line 2 (VDSL2) are digital subscriber line (DSL) technologies providing data transmission faster than Asymmetric Digital Subscriber Line (ADSL).
An open standard is a standard that is publicly available and has various rights to use associated with it and may also have various properties of how it was designed. There is no single definition, and interpretations vary with usage.
The Gateway Control Protocol is an implementation of the media gateway control protocol architecture for providing telecommunication services across a converged internetwork consisting of the traditional public switched telephone network (PSTN) and modern packet networks, such as the Internet. H.248 is the designation of the recommendations developed by the ITU Telecommunication Standardization Sector (ITU-T) and Megaco is a contraction of media gateway control protocol used by the earliest specifications by the Internet Engineering Task Force (IETF). The standard published in March 2013 by ITU-T is entitled H.248.1: Gateway control protocol: Version 3.
The Optical Internetworking Forum (OIF) is a prominent non-profit consortium that was founded in 1998. It promotes the development and deployment of interoperable computer networking products and services through implementation agreements (IAs) for optical networking products and component technologies including SerDes devices.
A passive optical network (PON) is a fiber-optic telecommunications technology for delivering broadband network access to end-customers. Its architecture implements a point-to-multipoint topology, in which a single optical fiber serves multiple endpoints by using unpowered (passive) fiber optic splitters to divide the fiber bandwidth among multiple access points. Passive optical networks are often referred to as the "last mile" between an Internet service provider (ISP) and its customers.
The next-generation network (NGN) is a body of key architectural changes in telecommunication core and access networks. The general idea behind the NGN is that one network transports all information and services by encapsulating these into IP packets, similar to those used on the Internet. NGNs are commonly built around the Internet Protocol, and therefore the term all IP is also sometimes used to describe the transformation of formerly telephone-centric networks toward NGN.
Fiber to the x or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. As fiber optic cables are able to carry much more data than copper cables, especially over long distances, copper telephone networks built in the 20th century are being replaced by fiber.
Ethernet in the first mile (EFM) refers to using one of the Ethernet family of computer network technologies between a telecommunications company and a customer's premises. From the customer's point of view, it is their first mile, although from the access network's point of view it is known as the last mile.
Annex M is an optional specification in ITU-T recommendations G.992.3 (ADSL2) and G.992.5 (ADSL2+), also referred to as ADSL2 M and ADSL2+ M. This specification extends the capability of commonly deployed Annex A by more than doubling the number of upstream bits. The data rates can be as high as 12 or 24 Mbit/s downstream and 3 Mbit/s upstream depending on the distance from the DSLAM to the customer's premises.
Reference Model of Open Distributed Processing (RM-ODP) is a reference model in computer science, which provides a co-ordinating framework for the standardization of open distributed processing (ODP). It supports distribution, interworking, platform and technology independence, and portability, together with an enterprise architecture framework for the specification of ODP systems.
The Home Gateway Initiative (HGI) is nonprofit trade organization to discuss the key specifications and standards of residential gateways, also known as home gateways.
The International Multimedia Telecommunications Consortium (IMTC) is an organization consisting of several companies interested in real-time, rich-media communications. Rich media includes voice and one-way data and one-way video. Members of this community include Internet application developers and service providers, teleconferencing hardware and software suppliers and service providers, telecommunications service providers and equipment vendors, end users, educational institutions, government agencies and non-profit corporations. On July 28, 2014 IMTC and the Unified Communications Interoperability Forum (UCIF) merged into one consortium. The UCI Forum defined interoperability profiles and certification tests, implementation guidelines, and best practices for interoperability between UC products and existing applications.
G.hn is a specification for home networking with data rates up to 2 Gbit/s and operation over four types of legacy wires: telephone wiring, coaxial cables, power lines and plastic optical fiber. A single G.hn semiconductor device is able to network over any of the supported home wire types. Some benefits of a multi-wire standard are lower equipment development costs and lower deployment costs for service providers.
The Broadband Forum is a non-profit industry consortium dedicated to developing broadband network specifications. Members include telecommunications networking and service provider companies, broadband device and equipment vendors, consultants and independent testing labs (ITLs). Service provider members are primarily wire-line service providers (non-mobile) telephone companies.
Operations Support Systems (OSS), Operational Support Systems in British usage, or Operation System (OpS) in NTT, are computer systems used by telecommunications service providers to manage their networks. They support management functions such as network inventory, service provisioning, network configuration and fault management.
Network functions virtualization is a network architecture concept that uses the technologies of IT virtualization to virtualize entire classes of network node functions into building blocks that may connect, or chain together, to create communication services.
G.fast is a digital subscriber line (DSL) protocol standard for local loops shorter than 500 m, with performance targets between 100 Mbit/s and 1 Gbit/s, depending on loop length. High speeds are only achieved over very short loops. Although G.fast was initially designed for loops shorter than 250 meters, Sckipio in early 2015 demonstrated G.fast delivering speeds over 100 Mbit/s nearly 500 meters and the EU announced a research project.