Value Added Services
Include the provision of public or private services information to the network user. This information is stored or processed by iteration with the user.

Videoconference
A service using B-ISDN, which allows the realization of video-telephone conferences, as well as the connection of different video-telephones to a conference studio. It is an audiovisual telecommunication system in real time, shared by a group of persons.

Virtual Card
A card that allows its owner to speak from a public phone, using his virtual telephone number, without incurring any cost for the telephone number that he uses to make the call.

Virtual Networks
The transmission system of the future for universal information services. Virtual networks are created by programming and last only while the transmission  of the information is being processed

Voice Mail
Recording of oral messages transmitted by telephone. The voice mail service is an additional service available with digital exchanges.

VSAT (Very Small Aperture Terminal)
It is a satellite communications system, so denominated due to its small-diameter parabolic antenna.