Telefonaktiebolaget LM Ericsson, commonly known as Ericsson, is a Swedish multinational networking and telecommunications company headquartered in Stockholm. The company sells infrastructure, software, and services in information and communications technology for telecommunications service providers and enterprises, including, among others, 3G, 4G, and 5G equipment, and Internet Protocol (IP) and optical transport systems. The company employs around 100,000 people and operates in more than 180 countries. Ericsson has over 57,000 granted patents.
The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets. It was first deployed in Finland in December 1991. By the mid-2010s, it became a global standard for mobile communications achieving over 90% market share, and operating in over 193 countries and territories.
SMS is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols that let mobile devices exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.
Telia Company AB is a Swedish multinational telecommunications company and mobile network operator present in Sweden, Finland, Norway, Denmark, Lithuania, Latvia and Estonia. It also runs an international IP backbone network which is ranked number two in the world through Telia Carrier.
2G is short for second-generation cellular network. 2G cellular networks were commercially launched on the GSM standard in Finland by Radiolinja in 1991.
Vodafone Group Plc is a British multinational telecommunications company. Its registered office and global headquarters are in Newbury, Berkshire, England. It predominantly operates services in Asia, Africa, Europe, and Oceania.
The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network.
Oi, formerly known as Telemar, is the largest fixed telephone operator and the fourth mobile telephone operator in Brazil, being the third largest telecommunication company in Latin America. It is headquartered in Rio de Janeiro.
Bharat Sanchar Nigam Limited d/b/a BSNL is a government owned telecommunications service provider headquartered in New Delhi, India. It is under the ownership of Department of Telecommunications, Ministry of Communications, Government of India. It was incorporated on 15th September 2000 by the Government of India. Its top official is designated as Chairman and Managing Director who is a central government civil servant of the Indian Communication Finance Service cadre. It provides mobile voice and internet services through its nationwide telecommunications network across India. It is the largest wireline telecommunications network service provider in India with more than 50% market share and fourth largest wireless telecommunications operator.
Tele2 AB is a European telecommunications operator headquartered in the Kista Science City, Stockholm, Sweden. It is a major telephone operator in Sweden, Estonia, Latvia and Lithuania, with about 9 million customers across the 4 countries. Tele2 also has a 25% share in T-Mobile Netherlands.
CSL Mobile Limited is a Hong Kong telecommunications company, which operates mobile network brands of "csl", "1O1O" and "Club SIM". CSL is a subsidiary of Hong Kong Telecom (HKT) and was Hong Kong's first mobile communications operator established in 1983, and also the first network to launch the world’s first dual band 4G LTE network with DC-HSPA+.
Elisa Oyj is a Finnish telecommunications company founded in 1882. Its previous names were Helsingin Puhelin and Elisa Communication Oyj. Elisa is a telecommunications, ICT and online service company operating mainly in Finland and Estonia, but it also offers digital services for international operators and other companies. In Finland Elisa is the market leader in mobile and fixed network subscriptions. Elisa provides services for communication and entertainment, and tools for improving operating methods and productivity of organisations. It cooperates for example with Vodafone.
A mobile phone operator, wireless provider, or carrier is a mobile telecommunications company that provides wireless Internet GSM services for mobile device users. The operator gives a SIM card to the customer who inserts it into the mobile device to gain access to the service.
MegaFon, previously known as North-West GSM, is the second largest mobile phone operator and the third largest telecom operator in Russia. It works in the GSM, UMTS and LTE standard. As of June 2012, the company serves 62.1 million subscribers in Russia and 1.6 million in Tajikistan. It is headquartered in Moscow.
DNA Oyj is a Finnish telecommunications group that provides voice, data and TV services. In December 2020, it had over 3.5 million subscription customers. 2.7 million of the customers were using a mobile network and 0.9 million were using a fixed network. DNA is a wholly owned subsidiary of Telenor.
All of Finland, including the Åland Islands, has the same country code, +358.
Matti Makkonen was a Finnish engineer in the field of mobile communications. He was employed by Nokia Networks and the then Telecom Finland, as well as Finnet Oy. Makkonen played a leading role in creating the mobile communication unit of what is today TeliaSonera. In 2008, Makkonen was awarded The Economist Innovation Award in the computing and telecommunications category for his work on text messaging (SMS).
Huawei SingleRAN is a radio access network (RAN) technology offered by Huawei that allows mobile telecommunications operators to support multiple mobile communications standards and wireless telephone services on a single network. The technology incorporates a software-defined radio device, and is designed with a consolidated set of hardware components, allowing operators to purchase, operate and maintain a single telecommunications network and set of equipment, while supporting multiple mobile communications standards.
Monaco Telecom is the main telecommunications provider in the Principality of Monaco. The company was founded in 1997 following a decision by the government of Monaco to privatize the state-owned Office Monégasque des Téléphones.
