GSM - Wikipedia
https://en.wikipedia.org/wiki/GSM
OverviewHistoryTechnical detailsGSM securityStandards informationGSM open-source softwareSee alsoFurther reading The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets. GSM is also a trade mark owned by the GSM Association. GSM may also refer to the Full Rate voice codec. Industry: Telecommunication Founded: December 1991; 31 years ago Products: Digital cellular networks
Industry: Telecommunication
Founded: December 1991; 31 years ago
Products: Digital cellular networks
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