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GSM-R

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**GSM-R**

What is GSM-R?

GSM-R (Global System for Mobile Communications – Railway) is an international wireless communications standard for railway operational communications and applications. It is a variant of GSM, using specific frequencies and functions defined by the European Railway Agency (ERA) to provide a standardized platform for communication between train and control centers, especially for safety-critical applications such as Automatic Train Protection (ATP).

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