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Signaling System No. 7 (SS7) is a critical telecommunications protocol that enables call setup, SMS delivery, and mobility management across global networks. This article dives into the technical workings of SS7, exploring its layered architecture, key components like Service Switching Points and Signal Transfer Points, and its role in modern telephony. While SS7 remains a backbone of legacy and mobile networks, its trust-based design exposes vulnerabilities, allowing attackers to intercept calls, track users, or commit fraud. Learn about the protocol’s functionality, risks, and mitigation strategies to understand its impact on telecom security.
In the realm of wireless communication technologies, NFC (Near Field Communication), Bluetooth, and RFID (Radio Frequency Identification) are widely used for various applications, from contactless payments to device pairing and asset tracking. While these technologies may seem similar at a glance, they differ significantly in terms of functionality, range, power consumption, security, and use cases. This article provides a detailed comparison of NFC, Bluetooth, and RFID to help you understand their strengths, limitations, and ideal applications.
Near Field Communication (NFC) is a short-range wireless technology that enables seamless communication between devices when they are brought within a few centimeters of each other. Operating at 13.56 MHz, NFC is a subset of Radio Frequency Identification (RFID) technology, designed for secure, contactless data exchange. From mobile payments to smart access systems, NFC has become a cornerstone of modern connectivity, offering convenience and security in everyday interactions.
This article dives deep into how NFC works, its applications, benefits, challenges, and its potential to shape the future of wireless communication.
Built-in GPS refers to a Global Positioning System receiver integrated directly into a device, such as a smartphone, tablet, car navigation system, or smartwatch, without requiring an external accessory or connection to function. It allows the device to determine its precise location (latitude, longitude, and sometimes altitude) by communicating with a network of satellites orbiting Earth. Read on to learn about this fascinating technology.
With 5G networks expanding globally, smartphone manufacturers are equipping their devices with different sets of 5G bands to ensure compatibility across regions. However, not all phones support the same bands, which can affect performance depending on your location and carrier.
This article is a comparison of popular smartphones and their 5G band support to help you choose the best device for your needs.
The rollout of 5G has revolutionized mobile connectivity - offering faster speeds, lower latency, and improved network reliability. While buying a smartphone, one of the features you come across is that the phone supports 13 5G bands, or like so. What exactly are these bands, and why do they matter?
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