Ribbon Communications Inc. revenue for the last year amounted to 826.00 M USD, the most of which — 477.65 M USD — came from its highest performing source at the moment, Cloud and Edge, the year earlier bringing 508.14 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Ribbon Communications Inc. 344.42 M USD, and the year before that — 352.66 M USD.