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

AMQP (Advanced Message Queuing Protocol) for message handling

AMQP (Advanced Message Queuing Protocol) for message handling

Discover how AMQP brings reliable, interoperable messaging to modern IT architectures—perfect for enterprises needing secure, efficient message queuing across applications and cloud services.

20.06.2025

Why CoAP is essential for IoT

Why CoAP (Constrained Application Protocol) is essential for IoT

Looking for a lightweight, efficient way to connect resource-constrained IoT devices? Discover how the Constrained Application Protocol (CoAP) enables secure, RESTful communication in low-power networks.

18.06.2025

OSI model and its 7 layers explained

OSI model and its 7 layers explained

Understand the OSI Model: Explore the seven-layer framework that standardizes network communication, essential for diagnosing issues and ensuring interoperability.

30.05.2025

11 IoT examples across different industries

11 IoT examples across different industries

In this blog post, we showcase 11 real-world IoT examples across various industries. Discover how businesses are leveraging IoT technology to improve efficiency, reduce costs, and drive innovation in sectors like manufacturing, healthcare, and logistics.

27.08.2024

Why MQTT (Message Queuing Telemetry Transport) is relevant for businesses

Why MQTT (Message Queuing Telemetry Transport) is relevant for businesses

Find out what makes MQTT ideal for connecting devices efficiently in data-sensitive environments.

30.05.2025