Syniverse’s platform enables seamless cross-border connectivity between the two networks
T-Mobile and Jio have achieved the world’s first 5G Standalone (SA) roaming connection, enabled through interoperability with Syniverse. The milestone enables T-Mobile customers to experience 5G SA roaming while travelling internationally, with faster speeds, lower latency and more reliable connectivity.
The development also opens possibilities for applications across IoT, real-time communications and immersive technologies. Syniverse’s connectivity platform enables secure interconnection between networks, supporting the adoption of next-generation roaming.
Ankur Kapoor, Chief Network Officer, T-Mobile, said, “This is a monumental step for global wireless, and T-Mobile is proud to lead it. We started this journey back in 2020, laying the groundwork for a 5G Standalone future — and today, we’re continuing that leadership with Jio India as a partner on a global stage. Leave one country, land in another, and your 5G experience is just as seamless — whether you’re streaming, sharing travel reels or running business apps. That’s the breakthrough power of this technology.”
Mark Yarkosky, Head International Network, Partnership and Services, Jio, said, “This is a transformational milestone and far more than just roaming—it’s about what becomes possible when two leading 5G Standalone networks work together. T-Mobile and Jio are laying the foundation for a new generation of cross-network capabilities and services, from differentiated consumer and enterprise experiences to AI-enabled services, leveraging the unique capabilities of 5G Standalone. This is the future of 5G SA: seamless, interoperable, and built to unlock new value.”
John Wick, Chief Product Officer, Syniverse, said, “Syniverse is proud to help enable this industry-first 5G Standalone roaming milestone, demonstrating how secure interworking and advanced mediation can make next-generation roaming commercially viable at a global level. Built on long-standing partnerships across the mobile ecosystem, our home-grown SEPP capabilities and proven platform help operators test, navigate, and launch 5G SA roaming with confidence. We are able to support all 5G-ready customers from validation through production as more operators come on board.”
The collaboration establishes a foundation for new cross-border services and experiences powered by advanced 5G networks.

