Telecom

GSM

GSM is the abbreviated form of global system for mobile communications. This term denotes a standard for second-generation radio based mobile communications established to promote compatibility between mobile telecom services and mobile communications devices. It is sometimes referred to as 2G. The first network built on the GSM standard was launched in 1992.

The GSM standard was built around mobile telephony and SMS messaging. It is also possible to transfer data and connect to the Internet through GSM networks using GPRS or EDGE technology, but data transfer speeds are relatively low. GSM networks are less efficient than networks built on the newer 3G/UMTS, 4G/LTE and 5G standards.

In Switzerland, GSM networks were maintained by Swisscom, Sunrise, and Salt. These operators have phased out their GSM networks. The Sunrise GSM network was the last to shut down, in early 2023. 

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