Mobile Phone >< 3G iPhone >< HTC Touch >< ASUS Eee PC >< Sony Ericsson >< Nokia >< Samsung >< Sony >< LG >   Mobile Phone A mobile phone (also known as a wireless phone, cell phone, or cellular telephone) is a short-range, electronic device used for mobile voice or data communication over a network of specialised base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video. Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones). Related Company: Nokia Nokia Corporation is a Finnish multinational communications corporation, headquartered in Keilaniemi, Espoo, a city neighbouring Finland's capital Helsinki. Nokia is focused on wireless and wired telecommunications, with 112,262 employees in 120 countries, sales in more than 150 countries and global annual revenue of 51.1 billion euros and operating profit of 8.0 billion as of 2007. It is the world's largest manufacturer of mobile telephones: its global device market share was about 38% in Q3 of 2008, down from 39% in Q3 2007 and down from 40% sequentially. Nokia produces mobile phones for every major market segment and protocol, including GSM, CDMA, and W-CDMA (UMTS). Nokia's subsidiary Nokia Siemens Networks produces telecommunications network equipments, solutions and services. Sony Ericsson Sony Ericsson is a joint venture established on October 3, 2001 by the Japanese consumer electronics company Sony Corporation and the Swedish telecommunications company Ericsson to make mobile phones. The stated reason for this venture is to combine Sony's consumer electronics expertise with Ericsson's technological leadership in the communications sector. Both companies have stopped making their own mobile phones. The company's global management is based in Hammersmith, London, and it has research & development teams in Sweden, Japan, China, Germany, the United States, India, Pakistan and the United Kingdom. By 2007, it was the fourth-largest mobile phone manufacturer in the world after Nokia, Motorola and Samsung. The sales of products largely increased due to the launch of the Walkman and Cyber-shot series. Samsung The Samsung Group (Samsung Guerup) is South Korea's largest chaebol and the world's 12th largest conglomerate by revenue, leading several industries in the world. It is composed of numerous international businesses, all united under the Samsung brand, including Samsung Electronics, Samsung Heavy Industries as one of the world's largest shipbuilders and Samsung Engineering & Construction as a major global construction company. These three multinationals form the core of Samsung Group and reflect its name - the meaning of the Korean word Samsung is "tristar" or "three stars". The Samsung brand is the best known South Korean brand in the world. Samsung overtook Japanese rival Sony in 2005, and became top 21th global brand in 2008. It is also the leader in many domestic industries, such as the financial, chemical, retail and entertainment industries.