1G (or 1-G) is short for first-generation wireless telephone technology, cellphones. These are the analog cellphone standards that were introduced in the 80s and continued until being replaced by 2G digital cellphones. 0G refers to pre-cellular mobile telephony technology. ... Push-To-Talk, commonly abbreviated as PTT, is a method of conversing on half-duplex communication lines, including two-way radio, by pushing a button in order to send, allowing voice communication to be transmitted from you, and releasing to let voice communication be received. ... Manual Tone Shift (MTS) was one of the earliest mobile telephone protocols. ... The Improved Mobile Telephone Service (IMTS) is a pre-cellular VHF/UHF radio system that links to the PSTN. IMTS had originally only sixteen channels and were prone to network congestion and interference by others keying up their radios while a converstaion was already occurring on a channel. ... The abbreviated mental test score (AMTS) was introduced by Hodkinson in 1972 to rapidly assess elderly patients for the possibility of dementia. ... Autotel (also called PALM, or Public Automated Land Mobile) is a radiotelephone service which was the missing link between earlier MTS/IMTS and later cellular telephone services. ... ARP (Autoradiopuhelin, Car Radio Phone in English) was the first commercially operated public mobile phone network in Finland. ... For other meanings of the abbreviation, see: NMT. NMT (Nordisk MobilTelefon or Nordisk MobilTelefon-gruppen, Nordic Mobile Telephony in English) is a mobile phone system that was created in 1981 as a response to the increasing congestion and heavy requirements of the ARP mobile phone network. ... This article is about AMPS, the North American mobile phone system standard; AMPS is also an initialism for the All Media and Products Survey published by the South African Advertising Research Foundation. ... 2G (or 2-G) is short for second-generation wireless telephone technology. ... The Global System for Mobile Communications (GSM) is the most popular standard for mobile phones in the world. ... The title of this article is incorrect because of technical limitations. ... IS-54 and IS-136 are second-generation (2G) mobile phone systems, known as Digital AMPS (D-AMPS). ... Interim Standard 95 (IS-95), is the first CDMA-based digital cellular standard pioneered by Qualcomm. ... Personal Digital Cellular (PDC) is a 2G mobile phone standard developed and used exclusively in Japan. ... 2. ... General Packet Radio Service (GPRS) is a mobile data service available to users of GSM mobile phones. ... CDMA2000 is a 3G mobile telecommunications standard that uses CDMA, a modulation scheme for digital radio, to send voice, data and signaling data (such as a dialed telephone number) between mobile telephones and cell sites. ... A 2G mobile phone is a circuit switched digital mobile phone. ... Enhanced Data rates for GSM Evolution (EDGE) is a digital mobile phone technology which acts as a bolt-on enhancement to 2G and 2. ... 3G (or 3-G) is short for third-generation mobile telephone technology. ... W-CDMA (Wideband Code Division Multiple Access) is a type of 3G cellular network. ... Universal Mobile Telecommunications System (UMTS) is one of the third-generation (3G) mobile phone technologies. ... Foma is the name of a Czech Photographic film factory and trademark of its production( [[1]] ). Foma (with a stress on the second syllable) is a Russian form of the name Thomas. ... CDMA2000 is a 3G mobile telecommunications standard that uses CDMA, a modulation scheme for digital radio, to send voice, data and signaling data (such as a dialed telephone number) between mobile telephones and cell sites. ... TD-SCDMA (Time Division Synchronous Code Division Multiple Access) is a 3G mobile telecommunications standard, being pursued in the Peoples Republic of China by the Chinese Academy of Telecommunications Technology (CATT), Datang and Siemens AG, in an attempt to develop home-grown technology and not be dependent on Western... The term 3. ... High-Speed Downlink Packet Access or HSDPA is a mobile telephony protocol. ... HSUPA, High-Speed Uplink Packet Access, is a data access protocol for mobile phone networks with extremely high upload speeds up to 5. ... HSUPA, High-Speed Uplink Packet Access, is a data access protocol for mobile phone networks with extremely high upload speeds up to 5. ... This article describes the wireless access technology 4G. For the 4G IATA code see Shenzhen Airlines 4G (or 4-G) is short for fourth-generation the successor of 3G and is a wireless access technology. ... Wireless was an old-fashioned term for a radio receiver, referring to its use as a wireless telegraph. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Technology (Gr. ... Cellular redirects here. ... Centuries: 1st century BC - 1st century - 2nd century Decades: 30s - 40s _ 50s - 60s - 70s _ 80s _ 90s - 100s - 110s - 120s - 130s 80 81 82 83 84 85 86 87 88 89 Note: Sometimes 80s is used as shorthand for the 1980s, the 1880s, or other such decades in... 2G (or 2-G) is short for second-generation wireless telephone technology. ...

One such standard is NMT (Nordic Mobile Telephone), used in Nordic countries, Eastern Europe and Russia. Others include AMPS (Advanced Mobile Phone System) used in the United States, TACS (Total Access Communications System) in the United Kingdom, C-Netz in West Germany, Radiocom 2000 in France, and RTMI in Italy. For other meanings of the abbreviation, see: NMT. NMT (Nordisk MobilTelefon or Nordisk MobilTelefon-gruppen, Nordic Mobile Telephony in English) is a mobile phone system that was created in 1981 as a response to the increasing congestion and heavy requirements of the ARP mobile phone network. ... The Nordic countries (Greenland not shown) The Nordic countries is a term used collectively for five countries in Northern Europe. ... Eastern Europe is, by convention, that part of Europe from the Ural and Caucasus mountains in the east to an arbitrarily chosen boundary in the west. ... Advanced Mobile Phone System or AMPS is the analog mobile phone system standard, introduced in the Americas during the early 1980s. ... Advanced Mobile Phone System or AMPS is the analog mobile phone system standard, introduced in the Americas during the early 1980s. ... Radio Telefono Mobile Integrato The history of mobile communications in Italy started in 1973 with the introduction of the first radio-communication service (Radio Telefono Mobile Integrato – RTMI) on a 160 MHz frequency band, which was used by a few people working in the public sector (public Administrations or defense). ...

Anticedant to 1G technology is the mobile radio telephone, or 0G. 0G refers to pre-cellular mobile telephony technology. ...