Thursday 30 July, 2026
Expert interview | GSMA eSIM
As eSIM adoption continues to expand across consumer, IoT and enterprise markets, interoperability is essential to ensuring secure, reliable and scalable connectivity worldwide.
In this GSMA Expert Interview, Guido Abate from STMicroelectronics and GSMA eSIM Working Group 3 explores how interoperability testing helps translate technical specifications into real-world deployments, ensuring consistent behaviours across different eSIM implementations.
Turning specifications into real-world deployments
With eSIM-enabled devices operating across multiple networks, platforms and markets, interoperability testing plays a critical role in validating that solutions work together as intended.
Guido discusses how GSMA testing and certification programmes help identify implementation challenges, improve consistency and strengthen industry confidence. By validating both technical interfaces and expected behaviours, these programmes support reliable eSIM deployments at scale.
Building trust through testing and certification
As the eSIM ecosystem grows increasingly complex, ongoing testing, security assurance and compliance programmes remain essential.
Industry-wide collaboration and common testing frameworks help improve implementation consistency, reduce fragmentation and support secure global deployments. Insights gained through interoperability testing also contribute to the continuous improvement of GSMA specifications.
The future of interoperability: AI-supported testing
Looking ahead, artificial intelligence could play an increasingly important role in advancing interoperability testing.
Guido shares his perspective on how appropriately trained AI-supported testing approaches could help generate additional test cases, expand coverage and address the growing complexity of eSIM implementations.
Combined with established GSMA compliance programmes, these innovations could further strengthen interoperability, reliability and trust across the global eSIM ecosystem.
