This graph illustrates the OSS Total Revenue worldwide between the years 2013 to 2018. In the last period, 2018, the largest presented item is Service Delivery Platform - SDP with Total Revenue of 8.34B. The fastest growing participant in our report is Service Delivery Platform - SDP with 61.52% growth in Total Revenue over 6 years between 2013 to 2018. The slowest growing topic is Revenue Management with 9.77% growth over the same period. This report is based on data published by Analysys Mason