Internet Protocol television in the context of "Multicast"

Terrestrial television, or over-the-air television (OTA) is a type of television broadcasting in which the content is transmitted via radio waves from the terrestrial (Earth-based) transmitter of a TV station to a TV receiver having an antenna. The term terrestrial is more common in Europe and Latin America, while in Canada and the United States it is called over-the-air or simply broadcast. This type of TV broadcast is distinguished from newer technologies, such as satellite television (direct broadcast satellite or DBS television), in which the signal is transmitted to the receiver from an overhead satellite; cable television, in which the signal is carried to the receiver through a cable; and Internet Protocol television, in which the signal is received over an Internet stream or on a network utilizing the Internet Protocol. Terrestrial television stations broadcast on television channels with frequencies between about 52 and 600 MHz in the VHF and UHF bands. Since radio waves in these bands travel by line of sight, reception is generally limited by the visual horizon to distances of 64–97 kilometres (40–60 miles), although under better conditions and with tropospheric ducting, signals can sometimes be received hundreds of kilometers distant.

Terrestrial television was the first technology used for television broadcasting. The BBC began broadcasting in 1929 and by 1930 many radio stations had a regular schedule of experimental television programmes. However, these early experimental systems had insufficient picture quality to attract the public, due to their mechanical scan technology, and television did not become widespread until after World War II with the advent of electronic scan television technology. The television broadcasting business followed the model of radio networks, with local television stations in cities and towns affiliated with television networks, either commercial (in the US) or government-controlled (in Europe), which provided content. Television broadcasts were in greyscale (called black and white) until the transition to color television in the 1960s.

Unified communications (UC) is a business and marketing concept that integrates multiple enterprise communication services. These include instant messaging, presence information, IP telephony, mobility features, audio/video/web conferencing, desktop and data sharing, call control, and speech recognition. UC also links with non-real-time services such as unified messaging (integrated voicemail, e-mail, SMS, and fax). UC is not necessarily a single product, but a set of products that provides a consistent unified user interface and user experience across multiple devices and media types.

In its broadest sense, the UC can encompass all forms of communications that are exchanged via a network to include other forms of communications such as Internet Protocol television (IPTV) and digital signage as they become an integrated part of the network communications deployment and may be directed as one-to-one communications or broadcast communications from one to many.

Orange S.A. (French: [ɔʁɑ̃ʒ] ; formerly France Télécom, stylised as france telecom) is a French multinational telecommunications corporation founded in 1988 and headquartered in Issy-les-Moulineaux, near Paris.

Orange has been the corporation's main brand for mobile, landline, internet and Internet Protocol television (IPTV) services since 2006. It traces its origins back to Hutchison Whampoa acquiring a controlling stake in Microtel Communications in 1994 in the United Kingdom. Microtel Communications became a subsidiary of Mannesmann in 1999 and then was acquired by France Télécom in 2000. The former French public telecoms monopoly thus became internationalized following this takeover and has pursued an expansionist policy since. The group now operates in many countries in Europe, Africa and in the French West Indies. Since February 2012, as a result of the company's decision to transfer its fixed-line telephony operations to its Orange brand, all offers marketed by France Télécom are Orange-branded; and on July 1, 2013, France Télécom itself was rebranded Orange S.A.. In 2019, Orange S.A. employed nearly 148,000 people worldwide, including 88,000 in France.

A set-top box (STB), also known as a cable box, receiver, or simply box, and historically television decoder or a converter, is an information appliance device that generally contains a TV tuner input and displays output to a television set, turning the source signal into content in a form that can then be displayed on the television screen or other display device. It is designed to be placed alongside or "on top" (hence the name) of a television set.

Set-top boxes are used in cable television, satellite television, terrestrial television and Internet Protocol television systems, as well as other uses such as digital media players ("streaming boxes"). Alternatives to set-top boxes are the smaller dongles, and television sets with built-in TV tuners.

Síminn hf. (Icelandic pronunciation: [ˈsiːmɪn], lit. 'The Telephone'; also known as Iceland Telecom Ltd.), previously named Landssíminn ([ˈlan(t)sˌsiːmɪn], lit. 'The National Telephone'), is an Icelandic telecommunications company. It offers communication services for both private and corporate clients, including mobile (4G/5G), landline, internet, IPTV, streaming services and television production.

As a former incumbent state-owned telecom, it was split from Iceland Post (Íslandspóstur) in 1998 and later privatised in 2005. In 2007 its infrastructure arm was split off as Míla, sold off in 2022. Síminn is listed on the Icelandic stock exchange.

The digital television transition, also called the digital switchover (DSO), the analogue switch/sign-off (ASO), the digital migration, or the analogue shutdown, is the process in which older analogue television broadcasting technology is converted to and replaced by digital television. Conducted by individual nations on different schedules, this primarily involves the conversion of analogue terrestrial television broadcasting infrastructure to Digital terrestrial television (DTT), a major benefit being extra frequencies on the radio spectrum and lower broadcasting costs, as well as improved viewing qualities for consumers.

The transition may also involve analogue cable conversion to digital cable or Internet Protocol television, as well as analogue to digital satellite television. Transition of land based broadcasting had begun in some countries around 2000. By contrast, transition of satellite television systems was well underway or completed in many countries by this time. It is an involved process because the existing analogue television receivers owned by viewers cannot receive digital broadcasts; viewers must either purchase new digital TVs, or digital converter boxes which have a digital tuner and change the digital signal to an analogue signal or some other form of a digital signal (i.e. HDMI) which can be received on the older TV. Usually during a transition, a simulcast service is operated where a broadcast is made available to viewers in both analogue and digital at the same time. As digital becomes more popular, it is expected that the existing analogue services will be removed. In most places this has already happened, where a broadcaster has offered incentives to viewers to encourage them to switch to digital. Government intervention usually involves providing some funding for broadcasters and, in some cases, monetary relief to viewers, to enable a switchover to happen by a given deadline. In addition, governments can also have a say with the broadcasters as to what digital standard to adopt – either DVB-T2 ATSC Governments can also require all receiving equipment sold in a country to support the necessary digital 'tuner'.