GSM (Global System for Mobile Communications)
A standard for mobile networks that defines how mobile phones and devices communicate over cellular networks. GSM is the world’s most widely used mobile communication technology, supporting voice calls, SMS (text messaging), and basic data services.
Originally developed in Europe, GSM quickly became a global standard and is used by mobile network operators worldwide. It works by dividing geographic areas into cells, each served by a base station, enabling seamless communication as users move between locations.
Key aspects of GSM include:
-Voice communication – Clear and reliable mobile calls.
-SMS messaging – Send and receive text messages.
-SIM card usage – Portable subscriber identity for authentication and network access.
-International roaming – Use mobile services across different countries and networks.
-Secure communication – Built-in encryption for privacy and security.
-Data services – Basic internet access through technologies like GPRS and EDGE.
Business benefits:
-Global compatibility and interoperability.
-Reliable network coverage for calls and SMS.
-Secure, encrypted communication.
-Support for IoT devices and machine-to-machine (M2M) communications.
Example use case:
A telecom operator uses GSM to provide mobile services like voice calls, SMS alerts, and basic data connectivity. For instance, a bank can send secure OTP (One-Time Password) messages over GSM to verify customer transactions in real time.
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