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Cellnet
Telefonica UK Limited, trading as O2 UK (stylised as O2), is a British telecommunications services provider. It is the largest mobile network in the United Kingdom, with approximately 23.2million subscribers . The network was launched in 1985 as Cellnet, a joint venture between British Telecom (60%) and Securicor (40%), and later rebranded BT Cellnet following BT's acquisition of Securicor's share. Cellnet was one of the two original cellular network operators in the UK, alongside Vodafone. In 2001, BT spun off its BT Wireless division as mmO2 plc (later O2 plc), with the UK network adopting the O2 brand in 2002. O2 plc was acquired by Spanish telecommunications firm Telefónica in 2006. Since 2021, O2 UK has formed a subsidiary of Virgin Media O2, a 50:50 joint venture between Telefónica and Liberty Global formed through the merger of their respective O2 UK and Virgin Media businesses. History Overview The company was formed in 1983 as Telecom Securicor Cellular Radio ...
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O2 (brand)
O2 (typeset as O2) is a global brand name owned by the Spanish telecommunications company Telefónica. The company uses the O2 brand for its subsidiaries in the United Kingdom and Germany. Since 2018, it is also used as an online-only flanker brand in Spain. Formerly, all European branches of Telefónica were managed by Telefónica Europe plc, a broadband Internet access, broadband and telecommunications company. The company originated as a collection of worldwide telecommunications companies, known in the later half of the 1990s as BT Wireless, and a global mobile data business known then as Genie Internet, both subsidiaries of BT Group, British Telecommunications (British Telecom or BT). As part of a reorganisation of Telefónica in 2014, Telefónica Europe's holdings and operations became direct subsidiaries of its parent: Telefónica S.A. Telefónica Europe provided mobile telephony operations in the United Kingdom and Germany, and licensed its brand to former operations in ...
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Total Access Communication System
Total Access Communication System (TACS) and ETACS are variants of Advanced Mobile Phone System (AMPS) which were announced as the choice for the first two UK national cellular systems in February 1983, less than a year after the UK government announced the T&Cs for the two competing mobile phone networks in June 1982. This 1G technology is now obsolete. History Vodafone (known then as Racal-Vodafone) opted for a £30 million turnkey contract from Ericsson (ERA) to design, build and set up its initial network of 100 base station sites. Cellnet (then known Telecom Securicor Cellular Radio Ltd) used development labs in the facilities at General Electric (later made part of Motorola) based at Lynchburg, Virginia, United States. The reason Cellnet used the General Electric labs was because the AMPS system was already in development there, and the company had set up a production facility in readiness for AMPS production in 1985 which the Cellnet TACS was to share. In March 1984 de ...
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Securicor
Securicor plc was one of the United Kingdom's largest security businesses. It was once a constituent of the FTSE 100 Index but merged with Group 4 Falck in 2004. History The Company was founded by Edward Shortt, a former Liberal Cabinet Minister, in 1935 as ''Nightwatch Services'':Group 4's Danes to swoop on Securicor
The Times, 1 February 2004
its guards rode bicycles and wore old police uniforms. However, in 1939 it was taken over by and Henry Tiarks who developed it into a leading security bu ...
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BT Group
BT Group plc (formerly British Telecom) is a British Multinational corporation, multinational telecommunications holding company headquartered in London, England. It has operations in around 180 countries and is the largest provider of fixed-line, Internet access, broadband and Mobile telephony, mobile services in the UK, and also provides subscription television and Information technology, IT services. BT's origins date back to the founding in 1846 of the Electric Telegraph Company, the world's first public telegraph company, which developed a nationwide communications network. BT Group as it came to be started in 1912, when the General Post Office, a government department, took over the system of the National Telephone Company becoming the monopoly telecoms supplier in the United Kingdom. The Post Office Act of 1969 led to the GPO becoming a public corporation, Post Office Telecommunications. The ''British Telecom'' brand was introduced in 1980, and became independent of the R ...
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Motorola
Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded by brothers Paul and Joseph Galvin in 1928 and had been named Motorola since 1947. Many of Motorola's products had been radio-related communication equipment such as two-way radios, consumer walkie-talkies, cellular infrastructure, mobile phones, satellite communicators, pagers, as well as cable modems and semiconductors. After having lost $4.3 billion from 2007 to 2009, Motorola was split into two independent public companies: Motorola Solutions (its legal successor) and Motorola Mobility (spun off), on January 4, 2011. Motorola designed and sold wireless network equipment such as cellular transmission base stations and signal amplifiers. Its business and government customers consisted mainly of wireless voice and broadband systems (used to build private networks), and public safety communications systems like Astro and Dimetra. Motorola's h ...
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Joint Venture
A joint venture (JV) is a business entity created by two or more parties, generally characterized by shared ownership, shared returns and risks, and shared governance. Companies typically pursue joint ventures for one of four reasons: to access a new market, particularly emerging market; to gain scale efficiencies by combining assets and operations; to share risk for major investments or projects; or to access skills and capabilities.' Most joint ventures are incorporated, although some, as in the oil and gas industry, are "unincorporated" joint ventures that mimic a corporate entity. With individuals, when two or more persons come together to form a temporary partnership for the purpose of carrying out a particular project, such partnership can also be called a joint venture where the parties are "''co-venturers''". A joint venture can take the form of a business. It can also take the form of a project or asset JV, created for the purpose of pursuing one specific project, ...
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Virgin Media
Virgin Media Limited is a British telecommunications company which provides telephone, television and internet services in the United Kingdom. Its headquarters are at Green Park in Reading, England. It is owned by Virgin Media O2, a 50:50 joint venture between Liberty Global and Telefónica. Since its foundation in 2007, the company has used the Virgin branding under license from Richard Branson. Virgin Media owns and operates its own Hybrid fibre-coaxial (HFC) and Fibre to the Premises (FTTP) networks in the United Kingdom. Although most of the network is urban focused, the new joint venture, Nexfibre (a 50:50 joint venture between Virgin Media O2 and Infravia Capital Partners) is expanding the network to more areas which never had access to the Virgin Media network before. As of Q2 2023, it had a total of approximately 5.8 million customers. Since the acquisition of Smallworld Cable in 2014, Virgin Media is the main cable provider in the UK, with the exception ...
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BT Cellnet Logo
BT or Bt may refer to: Arts, media and entertainment The arts * BT (musician) (born Brian Transeau), American electronic musician * ''BT'' (album), a 2000 album by Buck-Tick * Burton Taylor Studio or ''The BT'', managed by Oxford Playhouse Fictional entities * BT, a character in the television series '' .hack//Sign'' * BT (meaning "beached thing"), a type of fictional creature in the ''Death Stranding'' game News media * ''B.T.'' (tabloid), a Danish newspaper * , a Norwegian newspaper * ''Breakfast Television'', a Canadian morning television news program * ''The Business Times'' (Singapore), a financial newspaper Businesses Financial services * BT (Wealth Management), wealth management brand within Westpac group in Australia * Banca Transilvania, a bank in Romania * Bankers Trust, a banking organisation Public transport * AirBaltic, a Latvian airline (IATA code BT) * Blacksburg Transit, Virginia, US * Burlington Transit, Ontario, Canada * Brampton Transit, a local muni ...
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The Register
''The Register'' (often also called El Reg) is a British Technology journalism, technology news website co-founded in 1994 by Mike Magee (journalist), Mike Magee and John Lettice. The online newspaper's Nameplate_(publishing), masthead Logo, sublogo is "''Biting the hand that feeds IT''." The publication's primary focus is information technology news and opinions. Situation Publishing Ltd is the site's publisher. Drew Cullen is an owner and Linus Birtles is the managing director. Andrew Orlowski was the executive editor before leaving the website in May 2019. History ''The Register'' was founded in London as an email newsletter called ''Chip Connection''. In 1998 ''The Register'' became a daily online news source. Magee left in 2001 to start competing publications ''The Inquirer'', and later the ''IT Examiner'' and ''TechEye''. In 2002, ''The Register'' expanded to have a presence in London and San Francisco, creating ''The Register USA'' at theregus.com through a joint ventu ...
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Financial Times
The ''Financial Times'' (''FT'') is a British daily newspaper printed in broadsheet and also published digitally that focuses on business and economic Current affairs (news format), current affairs. Based in London, the paper is owned by a Japanese holding company, Nikkei, Inc., Nikkei, with core editorial offices across Britain, the United States and continental Europe. In July 2015, Pearson plc, Pearson sold the publication to Nikkei for Pound sterling, £844 million (US$1.32 billion) after owning it since 1957. In 2019, it reported one million paying subscriptions, three-quarters of which were digital subscriptions. In 2023, it was reported to have 1.3 million subscribers of which 1.2 million were digital. The newspaper has a prominent focus on Business journalism, financial journalism and economic analysis rather than News media, generalist reporting, drawing both criticism and acclaim. It sponsors an Financial Times and McKinsey Business Book of the Year Award, annual book ...
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General Packet Radio Service
General Packet Radio Service (GPRS), also called 2.5G, is a mobile data standard on the 2G cellular communication network's global system for mobile communications (GSM). Networks and mobile devices with GPRS started to roll out around the year 2001; it offered, for the first time on GSM networks, seamless data transmission using packet data for an "always-on" connection (eliminating the need to "dial-up"), so providing improved Internet access for web, email, WAP services, Multimedia Messaging Service (MMS) and others. Up until the rollout of GPRS, only circuit switched data was used in cellular networks, meaning that one or more radio channels were occupied for the entire duration of a data connection. On the other hand, on GPRS networks, data is broken into small packets and transmitted through available channels. This increased efficiency also gives it theoretical data rates of 56–114  kbit/s, significantly faster than the preceding Circuit Switched Data (CSD) ...
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