Of the big four US mobile operators, AT&T has been the most innovative in pushing open, disaggregated architectures to prepare for 5G, while Verizon has stood out for its early commercialization and its hunt for new revenue streams. Its fixed wireless access (FWA) service has so far been underwhelming in performance or impact, by all accounts, but it does demonstrate some bold thinking by a telco which is under intense pressure in many other areas of its business. Verizon has insisted that FWA is a standalone business case, not just a way to get services out quickly before the challenges of mobility – such as broad coverage and affordable handsets – are addressed. And while AT&T has demonstrated complex architectures,…