IPTV – (Internet Protocol Televesion) is television by IP-protocol. The technology of digital television streaming in data networks based on IP-protocol. It is important to understand that IPTV is a general term that includes all types of streaming in IP networks. Often IPTV is understood only as broadcast in local networks using multicast (IGMP), but this is only one of the implementation options. Broadcasting unicast content to mobile devices, via the Internet, from a corporate web site – all these are also subsets of IPTV. But downloading a clip from a remote store for watching later on your computer is not IPTV.
VPN (virtual private network) – A virtual private network (VPN) is programming that creates a safe, encrypted connection. Typically, it is used over a less secure network, such as the public internet. It uses tunnelling protocols to encrypt data at the sending end, and decrypt it at the receiving end. The originating and receiving network addresses are also encrypted to provide better security for online activities.
STB – (Set Top Box) is a set-top box, a device for receiving a TV signal and outputting to any display medium (screen, TV, etc.).
Under this concept, any set-top box is suitable, because STB includes satellite and cable receivers, as well as game consoles. If it is necessary to specify that the set-top box is intended for IPTV
EPG – (Electronic Program Guide) is the service of providing the subscriber with access to the listing of TV programs (including the time of the show, name, description of the program and other data) through a special menu.
VoD – (Video on Demand) is the service of individual delivery of content at the request of the subscriber.
Under the content in this case it is necessary to understand not only video (movies, TV shows), but in principle any digital content.
CatchUP TV- Is a service that gives subscribers access to specific programs that have already been broadcasted, but have been recorded by the provider.
PVR – (Personal Video Recorder”) is a service that allows a subscriber to record a TV program on a local device (PVR) or on a remote server provided by the provider (nPVR). The functionality of this service closely resembles CatchUP TV. The only difference is in the initiator of the program recording. In general, the CatchUP TV service is more convenient for the subscriber, since it allows not to worry about ordering the TV program in advance, so it gradually replaces the PVR / nPVR from the operators.
HEVC – HEVC (High Efficiency Video Coding) is a video compression format converting high-quality video materials into half as large files. Since this codec uses new algorithms that are more efficient than H.264/MPEG-4 AVC, it retains the image quality practically unchanged.