(TM) (Virtual Corporate Network) French: RVE(MC) (réseau virtuel d'entreprise) An alternative to a private or dedicated network that uses the national public switched telephone network (PSTN). VCN offers customers the flexibility to tailor their dialing plans to their organization's specific needs. Network intelligence can be used to provide a single national bill customized to meet specific customer requirements, such as detailed billing for a branch, applications or on a company-wide basis. VCN -- which works on a "pay-as-you-use" basis -- also allows customers to manage and control the various telecommunications applications within their organization, such as network monitoring, reporting and traffic analysis. (See Advantage Vnet.)

virtual circuit number. 12-bit field in an X.25 PLP header that identifies an X.25 virtual circuit. Allows DCE to determine how to route a packet through the X.25 network. Sometimes called LCI (logical channel identifier) or LCN (logical channel number).