Investor-Owned (IO) utilities have a networking challenge and opportunity. They must evolve away from their outdated TDM networks, which are no longer sustainable, and migrate to modern systems that use packet-networking technologies. Fortunately, the transition can be smooth and convenient for a utility. And once the packet network is established, the utility can also use the infrastructure to offer new revenue-generating, carrier-grade broadband services to the customer base. This paper explains how Ciena’s 6500 PTS solves multiple TDM-to-packet migration challenges.