O2 (UK) BT subsidiaries: Esat Digifone in Ireland, Viag Interkom in Germany and Telfort Mobiel in the Netherlands. The rebranding was supported by a European advertising campaign, which began on 16 April 2002, across all four countries, at a cost of £130 million. The main launch campaign ran from 18 June and was developed by Vallance Carruthers Coleman Priest, working alongside brand consultancy Lambie-Nairn, creators of the "O2" brand identity. In March 2005, mmO2 restructured its shares and the company was relisted as O2 plc. On 30 November 2005, O2 agreed to a takeover by Telefónica, a Spanish telecommunications company, for £17.7
PageOne Communications new name 'PageOne Communications'. 1992 - Mercury Paging Ltd acquires Intercity Paging ltd. Intercity's owner, Mtel Corporation (US) becomes the third shareholder. In the same year Mercury Paging's paging network infrastructure underwent extensive investment with satellite distribution technology implemented nationwide. 1990 - Using a single UK paging license, Mercury Paging commenced trading. A second UK paging channel was allocated in 1990. 1986 - PageOne Communications incorporated under its former name of Mercury Paging Ltd, its parent company, Mercury Communications being jointly owned by Cable and Wireless and Motorola. PageOne (operating under the Mercury brand) was the first UK organisation to