DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/4zv86s/global_unified) has announced the addition of the "Global Unified Communication Market Size, Market Share, Application Analysis, Regional Outlook, Growth Trends, Competitive Scenario And Forecasts, 2012 To 2020" report to their offering. The overall unified communication market is estimated to reach USD 75.81 billion by 2020 The unified communication market is expected to witness substantial growth