Knowledge Hub

Read our latest articles about digitalization, IoT, Cloud and Cybersecurity.

APN (Access Point Name) and its importance for mobile device data connections

APN (Access Point Name) and its importance for mobile device data connections

Discover how Access Point Names (APNs) serve as crucial gateways between mobile devices and the internet, ensuring seamless data connectivity. This article delves into the structure and significance of APNs, highlighting their role in reliable mobile network communication.

13.08.2026

What is TCP/IP?

What is TCP/IP?

Dive into the world of TCP/IP, the fundamental protocol that powers internet communication. This article explains how TCP/IP works, its key components, and why it remains essential for modern networking and digital communication.

13.08.2026

IMSI: The central subscriber identification explained

IMSI: The central subscriber identification explained

The IMSI number uniquely identifies mobile subscribers within a network and is essential for secure communication in mobile services and IoT applications. This article covers its function and key security aspects.

13.08.2026

34 A1 Digital SIM card sizes Header v4

SIM card sizes explained: Mini, Micro, Nano & eSIM

Explore the evolution of SIM cards—from full-size and Mini SIMs to the modern Nano SIM and eSIM—understand their differences in format, dimensions, and functionality for today’s devices.

13.08.2026

IoT Protocols A1 Digital

IoT Protocols: A comprehensive guide for enterprises

In this comprehensive guide, we explore the key IoT protocols that enable seamless communication between devices. Learn about the various protocols, their functions, and how they play a crucial role in ensuring efficient and secure IoT networks.

13.08.2026

Further Articles

ZigBee – Wireless, smart and connected

ZigBee – Wireless, smart and connected

Why Zigbee is powering the smart devices around you — a look into the wireless standard behind seamless, low-energy connectivity.

30.05.2025

IIoT: How the Industrial Internet of Things transforms manufacturing

IIoT: How the Industrial Internet of Things transforms manufacturing

Discover how the Industrial Internet of Things (IIoT) is transforming manufacturing and production by connecting machines, sensors, and analytics to boost efficiency and reduce downtime. Dive into the core benefits and real-world applications of IIoT in modern industry.

01.08.2025

Smart metering as a digital solution for the energy transition

Smart metering as a digital solution for the energy transition

Discover how intelligent metering systems are revolutionizing energy management—streamlining data collection, improving efficiency, and enabling real-time insights. Learn how smart meters are laying the foundation for a digital energy future.

04.08.2025

Standard SIM: The foundation of mobile communication

Standard SIM: Origin, usage & significance explained

From its origin as a credit-card-sized breakthrough in the early days of GSM to its niche survival in industrial systems, discover why the standard SIM still matters in our digital world.

01.10.2025

Working on the edge blog header

The Importance of Working on the Edge

14.08.2025