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2G, or the second generation of mobile network technology, is a standard for mobile communications that introduced digital data transmission. Launched in the 1990s, 2G represented a significant shift from the previous analog system, enabling the transmission of voice and data in digital format. The main technologies associated with 2G include GSM (Global System for Mobile Communications) and CDMA (Code Division Multiple Access).

In everyday life, 2G brought a series of improvements over previous communication systems. For example, it made it possible to send text messages (SMS), access basic services like conference calling and caller ID, and use basic applications such as calendars and alarms on mobile phones. Additionally, 2G allowed users to browse the internet via WAP (Wireless Application Protocol) browsers, albeit with limited speeds and simplified functionalities compared to subsequent systems.

In Switzerland, the introduction of 2G marked a significant advancement in mobile connectivity, paving the way for a range of new services and applications. 2G networks were quickly implemented by major telecommunications companies such as Swisscom, Sunrise, and Salt, ensuring national mobile coverage. As of 2023, 2G has been completely deactivated by all mobile subscription providers in Switzerland and is no longer used on any antenna.

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