IoT
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
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
The integrated SIM (iSIM) explained
Explore iSIM technology and how it’s revolutionizing the way devices connect to mobile networks. This article delves into the advantages of iSIM, including its space-saving design, enhanced flexibility, and how it’s shaping the future of IoT applications.
13.11.2024
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
Mini SIM: The former standard format for SIM cards
Though largely phased out in modern smartphones, the mini SIM still plays a key role in routers, industrial systems, and IoT setups — learn how it compares to newer formats and where it remains indispensable.
03.10.2025
