It is distinct from over-the-top (OTT) services, which are based on a direct one-to-one transmission mechanism.

IPTV methods have been standardised by organisations such as ETSI. IPTV has found success in some regions: for example in Western Europe in 2015, pay IPTV users overtook pay satellite TV users. IPTV is also used for media delivery around corporate and private networks.

Definition

Historically, many different definitions of IPTV

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