download speeds of 21 Mbit/s, although actual speeds vary between 550kbit/s and 8Mbit/s. , Next G network HSUPA upgrades in selected regional and metropolitan areas, combined with software updates for the "Turbo 21" modem, will allow peak uplink speeds of up to 5.76 Mbit/s. 4GX On 1 January 2015, Telstra launched, what it calls "4GX": a 700 MHz based component of its mobile network claiming speeds of up to 75Mbit/s with compatible devices. Business Technology Services (BTS) In January 2016, Telstra announced its acquisition of cloud service provider Kloud. This was followed closely by the acquisition of application development company Readify in July 2016. Market position Since the Australian telecommunications industry was deregulated in the early 1990s, Telstra has managed to remain the largest provider of telecommunications services despite the emergence of rivals Optus and TPG Telecom. A Harvard Business Review article from 2005 authored by a consultant to Telstra on this topic, reported "that a strategy of offering lower rates on some routes and at certain times of day, even though its prices, on average, were higher than its rivals", helped Telstra retain several points of market share it otherwise may have lost. In early 2011, Telstra successfully extended its market share lead by discounting its mobile phone products. By 2020, Telstra's revenue was $26.2 billion, Optus' was $9.0 billion, and TPG Telecom's was $4.4 billion. Management International holdings Telstra has over 200 subsidiary businesses as of 30 June 2016. The full list can be found at their website A list of major businesses that Telstra owns can be found here under: Selected events WotNext In January 2007 Telstra launched WotNext, a video-publishing website that allowed users to upload videos. The video content was then sold to mobile users for A$1, which the uploader and Telstra split equally. The website was shut down in after a media backlash over uploaded semi-pornographic videos. Privacy investigation On 12 July 2011, the Office of the Australian Information Commissioner (OAIC) released the findings of its investigation into a mailing list error that resulted in approximately 60,300 Telstra customers' personal information being sent to other customers. The Australian Privacy Commissioner Timothy Pilgrim said "Our investigation has confirmed that while Telstra breached the Privacy Act when the personal information of a number of its customers was disclosed to third parties; this incident was caused by a one-off human error. It was not a result of