 Evolving Systems, Inc. EVOL, a leader in real-time digital engagement solutions and services, anticipates shifting priorities for Communications Service Providers CSPs in 2020. With Mobile World Congress, the industrys largest annual gathering of key decision-makers happening this month in Barcelona, Evolving Systems leaders attending the event expect a number of pressing issues to be discussed. At Evolving Systems, we know better than anyone how state-of-the-art loyalty programs work and what they can deliver in the telco industry. 