The system of Classes of Service (COS) helps defining rights for one or another extension in the PBX or Centrex systems. For example, few groups require more space for storing voice messages, while other need the redirection of calls to cell phones, the third does not have to make calls outside of the office network. With the help of this system one can change and configure settings.
IPness is a product of The Phone Company nv/sa, The Phone Company of Belgium was formed in 1996, and has been serving large international carriers with high-tech innovative solutions and special value-added services.