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These services are delivered across an access agnostic, packet switched network that employs the IP protocol to transport the audio, video and control signals. These services may include, for example, Live TV, Video On Demand (VOD) and Interactive TV (iTV). IPTV is defined as the secure and reliable delivery to subscribers of entertainment video and related services. Īnother definition of IPTV, relating to the telecommunications industry, is the one given by Alliance for Telecommunications Industry Solutions (ATIS) IPTV Exploratory Group in 2005: IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP-based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability. One official definition approved by the International Telecommunication Union focus group on IPTV (ITU-T FG IPTV) is: Historically, many different definitions of IPTV have appeared, including elementary streams over IP networks, MPEG transport streams over IP networks and a number of proprietary systems. IPTV services may be classified into live television and live media, with or without related interactivity time shifting of media, e.g., catch-up TV (replays a TV show that was broadcast hours or days ago), start-over TV (replays the current TV show from its beginning) and video on demand (VOD) which involves browsing and viewing items of a media catalogue.

IPTV in the telecommunications arena is notable for its ongoing standardisation process (e.g., European Telecommunications Standards Institute). IPTV is also used for media delivery around corporate and private networks. IPTV is widely deployed in subscriber-based telecommunications networks with high-speed access channels into end-user premises via set-top boxes or other customer-premises equipment. This is known as streaming media.Īlthough IPTV uses the Internet protocol it is not limited to television streamed from the Internet ( Internet television).

As a result, a client media player can begin playing the content (such as a TV channel) almost immediately.

Unlike downloaded media, IPTV offers the ability to stream the source media continuously. This is in contrast to delivery through traditional terrestrial, satellite, and cable television formats. Internet Protocol television ( IPTV) is the delivery of television content over Internet Protocol (IP) networks. For Iowa Public Television, see Iowa PBS.

Download the new for mac YouTube Video Downloader Pro 6.7.2