BlackBerry Mobile Voice System allows access to PBX {Engadget Mobile}

Jul 18th 2007 2:37PM Does anyone know how the MVS is installed and deployed to the Blackberry devices?

Also, is it possible to control which devices have the MVS capability and of those to control which ones have particular features enabled or disabled? Basically, I don't want all the Blackberry users at the company I work for to have the MVS functionality and even in the ones that do have the MVS, I only want some of them to be able to conference call, for example.

Thanks!