Global System for Mobile Communications (GSM)
makerA standard developed to describe protocols for second-generation (2G) cellular networks used by mobile phones.
expanded
GSM is a digital cellular network protocol widely used for mobile communications across the world. It operates on specific frequency bands (e.g., 900 MHz and 1800 MHz in Europe) and supports circuit-switched voice communications, as well as data at a rate of up to 14.4 kbps. GSM's importance lies in its global adoption, which facilitates international roaming and interoperability between various mobile network operators.
examples
A GSM module like the SIM800L, which supports Quad-band frequencies 850/900/1800/1900 MHz, can be used for remote weather station data transmission.
Often used in IoT applications where devices need to send data wirelessly over mobile networks in diverse geographical areas.
Mobile phones such as the Nokia 3310, operating on GSM 900/1800 MHz bands, are used for making voice calls and sending SMS.
Used in everyday consumer communications, especially in regions where GSM is the predominant mobile network standard.