Telefonica O2 UK Ltd v British Telecommunications plc applied an extreme precautionary principle to a dynamic and competitive market, at odds with the Directives’ market-oriented and permissive approach. Lord Neuberger, Lord Mance, Lord Toulson and Lord Hodge agreed. Telefonica O2 UK Ltd v British Telecommunications plc Telefonica O2 UK Ltd v British Telecommunications plc [2014] UKSC 42 is a UK enterprise law, concerning telecommunications. Telefonica O2 UK Ltd argued that BT’s charges for connections and terminations were unlawful. BT’s Standard Interconnect Agreement was varied unilaterally in 2009 to change termination charges for 08 numbers, subject to a mobile operator’s right to object, and dispute resolution by Ofcom (unless
O2 (UK) as were all the group's other businesses (other than Manx Telecom). The re-branding was overseen by the Lambie-Nairn design agency, which developed the idea of the company supplying services that were essential, much the same as oxygen is essential for life. The company logo and associated graphics were designed using air bubbles to present this concept. The bubbles were photographed by London-based photographer Jonathan Knowles. O2 adopted the slogan "See what you can do" in 2002 after the company's demerger from BT. The slogan was later changed to "It's your O2" in May 2006, on 10 April 2008 to "We’re