virtual

Being in essence or effect, although not in reality. A virtual circuit, for example, is not a physical circuit, but behaves as though it were, at least in some respects.Virtual is virtually the opposite of transparent, as something transparent exists but appears almost as though it does not. See also transparent, virtual Centrex, virtual circuit, virtual path, virtual WATS, and VPN.

• ethics
• ETNO
• ETNO (European Telecommunications Network Operators’ Association)
• ETSI
• ETSI (European Telecommunications Standards Institute)
• etymology
• EUCL (End User Common Line Charge)
• euphemism
• European Computer Manufacturers Association (ECMA)
• European Conference of Postal and Telecommunications Administrations (Conférence
• European Radio Message System (ERMES)
• European Telecommunications Network Operators’ Association (ETNO)
• European Telecommunications Standards Institute (ETSI)
• Européenne des administrations des Postes et des Télécommunications or CEPT)
• EV-DO (EVolution-Data Optimized)
• EV (EVolution-Data Optimized)
• Evolution-Data Optimized (EV-DO or EV)
• EVRC (Enhanced Variable Rate Vocoder)
• Excess Burst Size (B )
• Excess Information Rate (EIR)
• exchange
• exchange
• exchange
• Exchange Carriers Standards Association (ECSA)
• exclusive hold