The Evolution of Unified Communications to Softwarehttp://blogs.technet.com/unified_communications/archive/2008/10/06/the-evolution-of-unified-communications-to-software.aspxSoftware is becomming the platform of choice for Unified Communications. PBX's are transforming from proprietary silod platforms to software application running on servers. The big players in this space are Micrososft, IBM and Cisco (in addition the theen-USCommunityServer 2.1 SP1 (Build: 61025.2)