What Is GSMA and Why Does It Matter for eSIM Users?
What is the GSMA?
The GSMA (Global System for Mobile Communications Association) is an industry organisation representing mobile network operators and device manufacturers worldwide. With over 750 operator members and 400 technology companies, it is essentially the standards body for the mobile industry.
The GSMA eSIM standard
The GSMA publishes the technical specifications that define how eSIMs work. These specifications — officially called GSMA SGP.02 (for M2M eSIMs) and SGP.22 (for consumer eSIMs) — ensure that an eSIM profile downloaded from a Japanese carrier works the same way as one from a European provider on your iPhone, Samsung, or Google Pixel.
Why this matters for travellers
Because of GSMA standardisation, you do not need to worry about compatibility between your Vsimer plan and your device. As long as your phone has a GSMA-compliant eSIM (which all modern smartphones do), any GSMA-compliant eSIM profile will work on it.
The RSP (Remote SIM Provisioning) architecture
The GSMA RSP architecture is what allows you to download an eSIM plan over Wi-Fi. It defines the secure server infrastructure (SM-DP+ servers) that stores eSIM profiles and delivers them to devices. When you scan a QR code from Vsimer, your phone is connecting to an SM-DP+ server to download your profile securely.
The future of eSIM standards
The GSMA is developing SGP.32, which will enable even more seamless profile management, including support for IoT devices and improved consumer profile management. These upgrades will eventually reach consumer devices through OS updates, making eSIM management even simpler in the coming years.