Where can solution providers get the best ROI in the UCaaS market? Why?

The best ROI is just to get in the game. You can sell many different types of cloud solutions like Software as a Service (SaaS), Infrastructure as a Service (IaaS), or even Platform as a Service (PaaS).

If you're a channel partner thinking about adding cloud components to your portfolio, start with UCaaS. Other cloud solutions are great, but only UCaaS offers a solution that all businesses need, like voice communications, and offer one of the highest (average sales prices) around. This alone makes it too compelling to ignore.