1G

first generationfirst-generationAnalog Networksmobile telephony service
1G refers to the first generation of wireless cellular technology (mobile telecommunications).wikipedia
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Cellular network

cellularmobile networkcellular networks
1G refers to the first generation of wireless cellular technology (mobile telecommunications).
The first commercial cellular network, the 1G generation, was launched in Japan by Nippon Telegraph and Telephone (NTT) in 1979, initially in the metropolitan area of Tokyo.

2G

2.5G2.75G2.5
These are the analog telecommunications standards that were introduced in the 1980s and continued until being replaced by 2G digital telecommunications.
After 2G was launched, the previous mobile wireless network systems were retroactively dubbed 1G.

C-Netz

1G cell phones (C-Netz)C-450C-Net C450
Others include Advanced Mobile Phone System (AMPS) used in North America and Australia, TACS (Total Access Communications System) in the United Kingdom, C-450 in West Germany, Portugal and South Africa, Radiocom 2000 in France, TMA in Spain, and RTMI in Italy.
The Radio Telephone Network C (German: Funktelefonnetz-C, abbreviated as C-Netz), was a first generation analog cellular phone system deployed and operated in Germany (at first West Germany) by DeTeMobil (formerly of Deutsche Bundespost Telekom, currently Deutsche Telekom).

Nordic Mobile Telephone

NMTNMT-450NMT 450
One such standard is Nordic Mobile Telephone (NMT), used in Nordic countries, Switzerland, the Netherlands, Eastern Europe and Russia.
NMT is based on analogue technology (first generation or 1G) and two variants exist: NMT-450 and NMT-900. The numbers indicate the frequency bands used.

Wireless

wireless communicationwireless communicationswireless internet
1G refers to the first generation of wireless cellular technology (mobile telecommunications).
Cellular networks: 0G, 1G, 2G, 3G, Beyond 3G (4G), Future wireless

3G

3G networkIMTthird generation
3G
A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

List of mobile phone generations

cellular mobile communications7Ggeneration
List of mobile phone generations
A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1981/1982.

Total Access Communication System

ETACSTACSTotal Access Communication
Others include Advanced Mobile Phone System (AMPS) used in North America and Australia, TACS (Total Access Communications System) in the United Kingdom, C-450 in West Germany, Portugal and South Africa, Radiocom 2000 in France, TMA in Spain, and RTMI in Italy.
Nordic Mobile Telephone (NMT) is another 1G analog cellular standard that was widely used in Europe, mainly in the Nordic countries, which has now been fully replaced by GSM except for limited use in rural areas due to its superior range.

Mobile radio telephone

0Gmanual mobile telephone systemmobile radio telephony
The antecedent to 1G technology is the mobile radio telephone.
1G

Mobile phone industry in the United States

Prepaid mobile service operators in U.S.American
* In 1983, Ameritech launched the first generation mobile phone service (1G) in Chicago.

GSM

GSM (850/900/1800/1900) GSM/GPRS/EDGEGSM technology
2G networks developed as a replacement for first generation (1G) analog cellular networks, and the GSM standard originally described a digital, circuit-switched network optimized for full duplex voice telephony.

Digital AMPS

TDMAD-AMPSANSI-136
IS-54 and IS-136 are second-generation (2G) mobile phone systems, known as Digital AMPS (D-AMPS), and a further development of the north-American 1G mobile system AMPS.

Mobile phone industry in Japan

Japanese mobile operatorsMobile phone industry in Japan § Providers
In the year 1979, Nippon Telegraph and Telephone (NTT) launched the world's first first generation (1G) mobile phone service in Tokyo as a car phone.

List of Nokia products

Ultrabasic16501xxx-9xxx series of mobile phones
These all use 1G networks.

Comparison of mobile phone standards

CDMA fixed wireless telephonycellular network standardsmobile communications standards
A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

1G (disambiguation)

1G is the first-generation wireless telephone technology.

List of BlackBerry products

Aurora
They were built for use with two 1G data-only packet switched networks: Mobitex and DataTAC.

Telus Mobility

TelusTelus (CA)
In 1983, AGT Mobility was formed by Alberta Government Telephones (the predecessor to Telus) to provide a 1G analogue mobile network for Alberta's natural resources industries.

Mobile phone

cell phonemobilemobile phones
The first handheld cellular mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing 2 kg. The first commercial automated cellular network (1G) analog was launched in Japan by Nippon Telegraph and Telephone in 1979.

Mobile telephony

mobile communicationmobile telecommunicationsmobile communications
The first fully automatic first generation cellular system was the Nordic Mobile Telephone (NMT) system, simultaneously launched in 1981 in Denmark, Finland, Norway and Sweden.

Paktel

Paktel offered only mobile telephony service to its 2 million subscriber base.

Channel access method

multiple accesschannel accessmultiple access method
An example of FDMA systems were the first-generation 1G cell-phone systems, where each phone call was assigned to a specific uplink frequency channel, and another downlink frequency channel.

History of Nokia

Mobira developed mobile phones for the Nordic Mobile Telephone (NMT) network, called the "1G" and was the first fully automatic cellular phone system.

Mobile technology

mobile technologiesmobilecellular technology
In the early 1980s, 1G was introduced as voice-only communication via "brick phones".