Xtraview Encryption System
Xtraview Video Encryption System refers to the now-defunct patented "encryption" system used on Xtraview and a number of other Top Up TV services, including Setanta Sports, Television X and Red Hot TV.
Unlike the other encryption system used by Top Up TV, Mediaguard, the Xtraview Video Encryption System was not a true encryption system. Instead, an MHEG application directed the user's set-top box to a hidden videostream when a correct PIN is entered. Unlike traditional channel encryption methods, Xtraview did not require a viewing card. This is an advantage over digital terrestrial television in the UK, where the vast majority of set-top boxes have no ability to decrypt pay channels.
Access to a channel protected using the Xtraview technology was granted by calling a premium rate telephone number. During the call, users were asked to give a number displayed on screen. In response, they were given a PIN to unlock the service.
As of 2011 a similar system is in use by Babestation Xtreme, Red Hot TV, Television X and briefly by the now defunct TView on digital terrestrial television.
Read more about Xtraview Encryption System: Criticism
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