Description: GSM-SS, or GSM Supplementary Services, refers to a set of additional services offered in mobile communication networks based on GSM technology (Global System for Mobile Communications). These services are designed to enhance the user experience and provide functionalities that go beyond the basic capabilities of mobile telephony. Among the most notable supplementary services are call identification, call transfer, call forwarding, and call barring. These services allow users to better manage their communications, offering personalized options that adapt to their needs. The implementation of GSM-SS has been fundamental to the evolution of mobile telephony, as it has enabled telecommunications operators to provide added value to their customers, enhancing competitiveness in the market. Furthermore, the standardization of these services has facilitated interoperability between different networks and devices, which has been crucial for the global growth of mobile telephony. In the context of security in mobile communication systems, GSM-SS also plays an important role, as many of these services require robust security measures to protect user privacy and the integrity of communications.
