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Executive Summary•Voice messaging (VM) remains a must-have application within a unified communications (UC) application stack. While the luster has faded compared to other communications methods, very few business are willing to abandon it.•The total enterprise voice and unified messaging (UM) market saw some gains in the number of seat licenses shipped in 2011. Market revenues declined, due largely to some license bundling and softness in the average selling price among vendors.•Vendors maintain particular focus on the interoperability and integration capabilities of their unified messaging solutions. By integrating and centralizing voice messaging for disparate telephony systems, vendors can offer the advanced functionality to businesses looking to maintain their investment in legacy communications platforms.•Server virtualization is extending the functionality and deployment opportunities for unified messaging, enabling cost-effective, geo-redundant, and hosted or cloud-based UM solutions.•Unified messaging continues to overtake traditional voicemail, with many vendors simply offering UM-enabled licenses within the majority of their platforms.
TABLE OF CONTENTS
Executive Summary 4Market Overview 9Total Market -•External Challenges: Drivers and Restraints 17•Forecasts and Trends 23•Market Share and Competitive Analysis 36The Last Word (Conclusions and Implications) 42Appendix 45