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2G (or 2-G) provides three primary benefits over their predecessors: phone conversations are digitally encrypted; 2G systems are significantly more efficient on the spectrum allowing for far greater mobile phone penetration levels; and 2G introduced data services for mobile, starting with SMS (Short Message Service) plain text-based messages. 2G technologies enable the various mobile phone ...
2G, or second-generation cellular network technology, marks the transition from analog to digital communication in mobile networks. Defined by the European Telecommunications Standards Institute (ETSI) under the GSM standard, which became the first globally adopted framework for mobile communications, 2G was first commercially launched in 1991 by Radiolinja (now part of Elisa Oyj) in Finland. [1]
Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.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.
Typical 2G standards include GSM and IS-95 with extensions via GPRS, EDGE and 1xRTT, providing Internet access to users of originally voice centric 2G networks. Both EDGE and 1xRTT are 3G standards, as defined by the ITU, but are usually marketed as 2.9G due to their comparatively low speeds and high delays when compared to true 3G technologies.
Samsung Galaxy A42 5G/M42 5G, Galaxy A52 5G, Galaxy F23, Galaxy F52 5G, Galaxy M23, Galaxy Tab S7 FE, Lenovo Xiaoxin Pad Plus (2021), Tab P11 5G, OnePlus Nord CE 5G, Oppo Reno5 K 5G, Realme Q3 , Motorola Moto G 5G (One 5G Ace), TCL 20 Pro 5G, Sharp Aquos Zero6, Fairphone 4, Xiaomi Mi 10T Lite, Mi 10i (Redmi Note 9 Pro 5G in China)
2.1.3.2 Nokia 2xxx – Basic series ... Series 40 Asha Dual-SIM: Full touch Bar: 2 MP: Nokia Asha 306: 240x400 pixels (65K) ... Devices with Microsoft branding are ...
In general, the types of phones and other devices supported by the MVNOs are in line with the technologies used by the Mobile Network Operator (MNO), the underlying cellular network provider. All major and regional MNOs use 4G LTE / LTE Advanced and 5G NR protocols (2G and 3G having been deprecated and shut down), with GSM technologies.
Activation for devices that are not VoLTE capable ended on 30 Jun 2018. Movilnet Venezuela: CDMA2000 1xRTT, EV-DO Rel. 0 800 Nov 2002: Oct 2020 [184] [185] Movistar Venezuela: CDMA2000 1xRTT, EV-DO Rel. 0 800 Dec 2005: Mar 2014 [186] [187
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