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
Liberia Telecommunications Corporation owns thirty communications towers around the country, which it both utilizes in its network and leases to Liberia's four GSM mobile providers. Liberia Telecommunications Corporation The Liberia Telecommunications Corporation (Libtelco) is a telecommunications company providing services in Liberia. Headquartered in Monrovia, the company provides telephone, Internet, fax and radio services to the Greater Monrovia area. Prior to the passage of the Telecommunications Act of 2007, Libtelco possessed a legal monopoly over the country's fixed line services, and today remains the sole company licensed by the Liberia Telecommunications Authority to provide fixed line telephone services. Libtelco was founded through the Liberian