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2. List of wireless network technologies - Wikipedia

   en.wikipedia.org/wiki/List_of_wireless_network...

   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 ...

3. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   SIM card: None Smaller cells and lower coverage on the S band. Very low density Hard No (data only) Voice possible through VoLTE or fallback to 2G/3G 5G: OFDMA: NR: Digital: 2018 Limited SIM card: None Dense cells on millimeter waves. Very low density Hard No (data only) Voice possible through VoNR

4. 2G - Wikipedia

   en.wikipedia.org/wiki/2G

   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]

5. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   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.

6. Nothing Phone 2 - Wikipedia

   en.wikipedia.org/wiki/Nothing_Phone_2

   The Phone (2) released with Nothing OS 2.0, which is based on Android 14. [11] It is expected to get three years of Android updates and four years of security updates. [12] The latest version of Nothing OS for the Phone (2) is Nothing OS 2.6, which includes new features, minor adjustments and bug fixes. [13]

7. Enhanced Data rates for GSM Evolution - Wikipedia

   en.wikipedia.org/wiki/Enhanced_Data_Rates_for...

   Enhanced Data rates for GSM Evolution (EDGE), also known as 2.75G, Enhanced GPRS (EGPRS), IMT Single Carrier (IMT-SC), and Enhanced Data rates for Global Evolution, is a 2G digital mobile phone technology for data transmission.