* Mercy Medical Center needs NAC for virtual machines, VMware is working on a solution
However, interoperability between UC products is one concern
Aspect Software will integrate its unified communications platform with Office Communications Server
Unified communications packages will dominate the future
Gore and Chambers tout technological solutions to environmental problems
* Virtual networks pose problems for NAC
Phones, redundancy, energy vary vendor to vendor
Microsoft, IBM, Nortel among big names making UC, collaboration news
Packages of IP PBX and other gear support remote and mobile workers
