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.
World Venture Group Telecom is a VoIP system integration leader in this environment. It deploys turn key projects for service providers as well as for multinational enterprises located in Latin America, USA and Europe.