The UK incumbent, BT, may be one of the most publicly cautious telcos about the near term business case for radical new 5G services, but it has no such inhibitions about the disaggregated network platforms that will underpin next generation fixed and mobile deployments – and eventually make the case for those 5G models. Chief architect Neil McRae said in a recent interview that BT’s future network strategy would rely on software deployed on white box switches and routers, and in future, on full cloud-native, containerized software architectures. McRae’s comments echoed those of telcos like AT&T, which has been the most vocal operator about software-defined, disaggregated deployments, with plans to implement a white box router at almost every cell site…