Which of the following is the definition of global system for mobile (GSM) communications?

The definition of global system for mobile (GSM) communications is accurately represented by the option stating that it is a standard developed by the European Telecommunications Standards Institute (ETSI). GSM was established as a pan-European mobile communication standard that revolutionized mobile communication by providing digital transmission capabilities for voice and data. This development aimed to standardize mobile networks across different countries, facilitating seamless communication as users traveled across borders.

The involvement of ETSI is particularly significant, as this organization played a crucial role in advocating for a unified standard that supports mobile services. GSM effectively laid the groundwork for subsequent generations of mobile technology, including enhancements that later led to 3G and beyond.

In terms of understanding GSM's place within the evolution of mobile communications, recognizing it as a fundamental standard set by ETSI provides valuable insight into its historical and technical significance in the telecommunications landscape.