Over-the-top media services
Over the top (OTT) is a term used to refer to content providers that distribute streaming media as a standalone product directly to viewers over the Internet, bypassing telecommunications, multichannel television, and broadcast television platforms that traditionally act as a controller or distributor of such content.
The term is most synonymous with subscription-based video on demand services that offer access to film and television content (including existing series acquired from other producers, as well as original content produced specifically for the service), including Amazon Video, fuboTV, Hulu, Netflix, Now TV, Sling TV, MercTV, and Sky Go as well as a wave of "skinny" television services that offer access to live streams of linear specialty channels similar to a traditional satellite or wireline television provider, but streamed over the public Internet, rather than a closed, private network with proprietary equipment such as set-top boxes.
Over the top services are typically accessed via websites on personal computers, as well as via apps on mobile devices (such as smartphones and tablets), digital media players (including video game consoles), or televisions with integrated smart TV platforms.
In 2011, the Canadian Radio-Television and Telecommunications Commission (CRTC) stated that it "considers that Internet access to programming independent of a facility or network dedicated to its delivery (via, for example, cable or satellite) is the defining feature of what have been termed 'over-the-top' services".
In contrast to video on demand video-delivery systems offered by cable and IPTV, which are tightly managed networks where channels can be changed instantly, some OTT services such as iTunes require that the video be downloaded first and then played, while other OTT players such as Netflix, Hulu, and Amazon Video, offer movie downloads that start playing before the download completes (streaming).
An OVD was defined by the FCC as:
any entity that provides video programming by means of the Internet or other Internet Protocol (IP)-based transmission path where the transmission path is provided by a person other than the OVD. An OVD does not include an MVPD inside its MVPD footprint or an MVPD to the extent it is offering online video programming as a component of an MVPD subscription to customers whose homes are inside its MVPD footprint.
In broadcasting, over-the-top (OTT) content is the audio, video, and other media content delivered over the Internet without the involvement of a multiple-system operator (MSO) in the control or distribution of the content. The Internet provider may be aware of the contents of the Internet Protocol (IP) packets but is not responsible for, nor able to control, the viewing abilities, copyrights, and/or other redistribution of the content. This model contrasts with the purchasing or rental of video or audio content from an Internet service provider (ISP), such as pay television, video on demand, and from internet protocol television (IPTV). OTT refers to content from a third party that is delivered to an end-user, with the ISP simply transporting IP packets.
Types of content
This section needs expansion with: a thorough, sourced description of the types of OTT content current transmitted. You can help by adding to it. (December 2016)
OTT television, usually called internet television or streaming television, remains the most popular OTT content. This signal is received over the internet or through a cell phone network, as opposed to receiving the television signal from a terrestrial broadcast or satellite. Access is controlled by the video distributor, through either an app or a separate OTT dongle or box, connected to a phone, PC or television set. By mid-2017, 58 per cent of US households would access one in a given month and advertising revenues from OTT channels exceeded those from web browser plug-ins.
OTT messaging is defined as instant messaging services or online chat provided by third parties, as an alternative to text messaging services provided by a mobile network operator. An example is the Facebook-owned mobile application WhatsApp, that serves to replace text messaging on Internet connected smartphones. Other providers of OTT messaging include Viber, WeChat, Skype, Telegram and Google Allo. 
OTT voice calling, usually called VOIP, capabilities, for instance, as provided by Skype, WeChat, Viber, and WhatsApp use open internet communication protocols to replace and sometimes enhance existing operator controlled services offered by mobile phone operators.
Modes of access
Consumers can access OTT content through Internet-connected devices such as phones (including Android, iOS, and Windows-type mobile devices), smart TVs (such as Google TV, and LG Electronics' Channel Plus),[better source needed] set-top boxes (such as Apple TV, NVidia Shield, Fire TV, and Roku), gaming consoles (such as the PlayStation 4, Wii U, and Xbox One), tablets, and desktop- and laptop computers.
- Jarvey, Natalie (15 September 2017). "Can CBS Change the Streaming Game With 'Star Trek: Discovery'?". The Holywood Reporter. Archived from the original on 2017-10-28. Retrieved 27 October 2017.
- (CRTC), Government of Canada, Canadian Radio-television and Telecommunications Commission. "Results of the fact-finding exercise on the over-the-top programming services". www.crtc.gc.ca. Archived from the original on 2017-06-03. Retrieved 30 May 2017.
- Gibbon, David C., and Liu, Zhu. Introduction to Video Search Engines. Washington, DC: Federal Communications Commission (FCC). p. 251.CS1 maint: Multiple names: authors list (link)
- Cansado, Jose Miguel (13 October 2008). "Will Internet TV Kill IPTV?". Archived from the original on 2017-06-06. Retrieved 30 May 2017.
- FCC (May 6, 2016). Annual Assessment of the Status of Competition in the Market for the Delivery of Video Programming [Seventeenth Report; MB Docket No. 15-158; DA 16-510] (PDF) (Report). Washington, DC: Federal Communications Commission (FCC). pp. 4417–4587. Archived (PDF) from the original on 2016-10-26. Retrieved December 26, 2016.
- "FCC Officially Launches OVD Definition NPRM". Broadcasting & Cable. Archived from the original on 2017-08-19. Retrieved 2018-03-22.
- IPTV is the delivery of television content using signals based on the logical Internet protocol (IP), rather than through traditional terrestrial, satellite signal, and cable television formats.
- Hansell, Saul (March 3, 2009). "Time Warner Goes Over the Top". The New York Times. Archived from the original on 2011-07-10. Retrieved March 21, 2016.
- "Over-the-Top Video and Content Delivery Networks Will Transform Video-On-Demand Provisioning". Electronic Component News. November 19, 2009. Archived from the original on March 5, 2012.
- "Why 2011 Is Being Called The Year Of "The Cable Cut"". Business Insider. December 30, 2010. Archived from the original on 2016-04-03. Retrieved March 21, 2016.
- "Who Is Playing The OTT Game And How To Win It". Business Insider. December 30, 2010. Archived from the original on 2016-04-03. Retrieved March 21, 2016.
- Andrew Orlowski; Can the last person watching desktop video please turn out the light? Archived 2017-08-08 at the Wayback Machine, The Register, 8 Aug 2017 (retrieved 8 Aug 2017).
- "Chart of the Day: Mobile Messaging". Business Insider. May 17, 2013. Archived from the original on 2014-02-22. Retrieved February 10, 2014.
- Maytom, Tim (August 4, 2014). "Over-The-Top Messaging Apps Overtake SMS Messaging". Mobile Marketing Magazine. Archived from the original on 2015-09-07. Retrieved August 28, 2015.
- Albergotti, Reed; MacMillan, Douglas; Rusli, Evelyn (February 20, 2014). "Facebook's $18 Billion Deal Sets High Bar". The Wall Street Journal. Missing or empty
- Rao, Leena (September 4, 2015). "WhatsApp hits 900 million users". Fortune. Archived from the original on 2016-01-28. Retrieved January 27, 2016.
- "Apps Roundup: Best Messaging Apps". Tom's Guide. Oct 4, 2016. Archived from the original on 2017-02-14. Retrieved 2017-02-14.
- Roettgers, Janko (January 8, 2016). "LG's New TVs Mix Streaming Channels from Buzzfeed, GQ & Vogue with Traditional Networks". Variety. Archived from the original on 2017-02-03. Retrieved December 26, 2016.
- "FCC Adopts 15th Report On Video Competition". U.S. Federal Communications Commission. July 22, 2013. Retrieved March 7, 2014. Announcement of release Report.
- "User Interface Holds the Key to OTT Success". Pay OTT TV. March 11, 2011. Archived from the original on June 18, 2011. Retrieved March 21, 2016.