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SS7 (Signaling System No. 7) is an international standard for the exchange of signaling information in telephone networks. This system is responsible for call control, routing, as well as for the transfer of messages between operators' networks, which ensures stable operation of telephone and mobile services.
SS7 is characterized by high data transfer rate and reliability. It enables functions such as connection establishment, call management, SMS transmission, and provides roaming and interoperability between different operators' networks. However, despite its importance, the system is vulnerable to attacks, which requires constant security enhancements.
SS7 is used for call management, text messaging, and international roaming. This system is critical to the reliable operation of modern telephone networks and interconnection between operators.
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