11 11 13 14 15 15 15 16 17 17 18 19 19 19 20 20 21 22 22 23 23 23 24 24 27 3 | Ribbon Sustainability Report 2019-2020 This is Ribbon Communications’ first global Sustainability Report, embracing the tradition of annual sustainability reporting established over the past eight years at ECI Telecom, following the merger of Ribbon with ECI in 2020.