As the IPX provider of the Key2roam Hub, the world’s largest roaming hub, Comfone plays a pivotal role in ensuring that mobile operators can support their subscribers with global coverage – Providing Borderless and Easy Communications to all People and all Things.
Every day, millions of roaming events rely on Comfone’s IPX to deliver consistent, secure, and high-quality connectivity.
With thousands of roaming connections flowing through the Key2roam Hub, Comfone’s IPX ensures resilient transport and intelligent routing of all roaming traffic: from SS7 and Diameter, through GRX user-plane data, to next-generation HTTP/2 signalling for 5G Standalone. This is the backbone enabling the Key2roam Hub to deliver the scale and performance that today’s roaming world demands.
A multi-service IPX built for high-volume roaming
The Key2roam Hub’s global reach requires a transport network capable of handling high signalling density and ever-growing user-plane traffic. Comfone’s IPX provides exactly that.
By design, it is a multi-service, segregated network, built to support:
- SS7 signalling for 2G/3G roaming and traditional SMS
- Diameter signalling for LTE and 5G NSA roaming
- HTTP/2 signalling for 5G Standalone roaming
- GRX traffic for data roaming across all technologies
All traffic types are priorities and securely separated via dedicated VLANs, ensuring quality, performance, and resilience.
DRF: Enabling Data Roaming for tomorrow’s use-cases
Beyond traditional mobile data roaming, the Key2roam Hub benefits from Comfone’s Data Roaming Function (DRF) for an ever-expanding ecosystem of international roaming use-cases.
The DRF enabled centralised routing and policing of data roaming traffic across all technologies. Non-traditional use-cases, including: IoT, M2M, and latency-sensitive services, are seamlessly handled by the DRF for the Key2roam Hub.
This ensures that Key2roam Hub partners can support new connectivity models like large-scale IoT deployments, automotive use-cases, industrial sensors, and many others, without compromising performance or operational simplicity.
With DRF 2.0 now underway, Key2roam Hub partners can expect even greater capacity, efficiency, flexibility, and routing intelligence for their data roaming traffic.
Visibility, troubleshooting and insights via Pulse
The Key2roam Hub does not only rely on Comfone’s IPX for transport, it also benefits from the advanced monitoring, troubleshooting, and reporting suite built into Pulse. This includes:
- Hawkeye: near real-time monitoring, KPIs, and forecasting-enhanced alarming
- Signalling Tracing: Comfone’s multi-protocol tracing tool
- IPX Reports: reporting across all IPX services
These tools provide the Key2roam Hub and its customers with visibility into their roaming business, enabling faster issue resolution and enhanced user-experience.
Future-proofing the Roaming Hub through IPX modernisation
Comfone is continuously investing in the evolution of the IPX backbone- upgrading capacity, architecture, and intelligence to support future roaming demands. This includes:
- PoP 2.0 modernisation, bringing enhanced routing, capacity, and resilience in Comfone’s IPX backbone
- DRF 2.0, delivering next-generation data roaming
- Increased backbone capacity
These improvements directly benefit the Key2roam Hub, Comfone’s largest IPX customer. Every enhancement to Comfone’s IPX is, essentially, an enhancement of the Key2roam Hub, ensuring that it remains the world’s most robust and future-ready roaming hub.
Prepared for global events and seasonal peaks
With major events such as the 2026 FIFA Men’s World Cup in the United States, global tourism peaks, and seasonal holiday suggest, roaming traffic fluctuates dramatically throughout the year.
Comfone proactively forecasts and models these patterns using advanced analytics and forecasting tools which enables us to dimension the IPX backbone well ahead of demand. This means Key2roam Hub partners can rely on stable, high-quality roaming, even during periods of high traffic load.
A partnership that scales with the roaming world
The Key2roam Hub is the world’s largest roaming hub because it is built on top of an IPX engineered for capacity, resilience, and future-proof evolution. Comfone’s IPX ensures that:
- All signalling and data traffic is transported securely and efficiently
- IoT and M2M use-cases are seamlessly supported
- operators benefit from deep visibility and analytics
- Infrastructure scales proactively with global roaming trends
As mobile technologies evolve and roaming demands accelerate, the partnership between the Key2roam Hub and Comfone’s IPX ensures that millions of subscribers continue to enjoy reliable connectivity.
