Hosting / Online Services are certainly an accelerator for Unified Communications; According to Radicati Group the revenue size will double in the the coming 4 years ..
.. The latest study by The Radicati Group, Inc., "Hosted Unified Communications Market, 2009-2013," provides an in-depth analysis including installed base and revenue market share by vendor, four-year forecasts, and breakouts by region and business size.
The Hosted Unified Communications market is comprised of services that offer integrated voice, messaging, collaboration, and presence capabilities that can be easily accessed and managed through a single interface. This study looks at two key market segments: Hosted UC Providers, and Telecom UC Providers.
The study provides an analysis of a broad range of Hosted UC Providers, including: Apptix, AT&T, CallTower, Cypress Communications, Hutchinson 3G, Intelliverse, Intermedia, LightEdge Solutions, Microsoft, NTT DoCoMo, Onebox, Orange SA, Skype Technologies, Sprint Nextel Corporation, Telus, USA.NET, Verizon Communications, Vodafone and others.
The Hosted UC market is showing strong growth with revenues expected to reach $2.3 billion in 2009, and growing to nearly $5 billion by 2013. …
Source : http://www.radicati.com