T-Mobile and Jio have completed what they describe as the world’s first 5G Standalone roaming connection, marking a new step in international mobile connectivity. The connection was made possible with support from Syniverse, which provides technology for linking different mobile networks.

The development means T-Mobile customers can use 5G Standalone roaming when travelling internationally, giving users access to the newer 5G technology across supported networks.
What Is 5G Standalone Roaming
5G Standalone roaming allows mobile users to connect between 5G networks in different countries using dedicated 5G network infrastructure.
Unlike some 5G services that depend on existing 4G systems, 5G Standalone uses a dedicated 5G core. This can provide faster connectivity, lower delays and more reliable network performance.
The technology can also support services that need stable and responsive connections, including Internet of Things devices, real-time communication and immersive digital applications.
T-Mobile and Jio Work Together
T-Mobile said the development is an important step towards improving global 5G connectivity. The company has been preparing for the expansion of 5G Standalone technology since 2020 and worked with Jio to bring the capability to international roaming.
The partnership aims to allow customers to maintain a more consistent 5G experience while travelling between countries. This could benefit everyday activities such as streaming, sharing videos and using business applications.
Jio Highlights New 5G Capabilities
Jio said the development represents a move beyond traditional roaming services. The company highlighted the possibilities created when two independent 5G Standalone networks are able to work together.
The technology could support new services for consumers and businesses, including applications that use artificial intelligence and other advanced technologies.
Syniverse Connects the Networks
Syniverse provided the technology needed to establish secure communication and interoperability between the T-Mobile and Jio networks.
The company said its platform can help mobile operators test, verify and introduce 5G Standalone roaming services as more telecom networks move towards the technology.
5G Standalone Could Improve Global Roaming
The T-Mobile and Jio development shows how 5G Standalone networks could eventually work together across international borders.
The companies said the technology could support new services for consumers and businesses while creating opportunities for applications based on advanced connectivity, artificial intelligence and other emerging technologies.
