Roaming has always been a significant challenge for a new connectivity technology. It took years for globally accepted back office mechanisms for roaming – covering a plethora of processes from handover to remediation to billing – to develop for cellular networks. The WiFi industry went through a similar struggle, and has not yet truly achieved a common global approach. And with 5G, the goalposts have moved again – not because of the connectivity itself, but the need to support roaming across the software-driven, shared, sliceable platforms. To allow connectivity to take place across many operators’ virtual networks, cloud infrastructure, edge nodes and slicing will be a significant challenge, both technically and in terms of how operators need to adjust their…