Word / Term Definition
Voice over Internet Protocol (VoIP)

is the routing of voice conversations over the Internet or any other IP network. The voice data flows over a general-purpose packet-switched network, instead of the traditional dedicated, circuit-switched voice transmission lines.

Virtual Private Network (VPN)

usually refers to a network in which some of the parts are connected using the public internet but the data sent across the internet is encrypted, so the entire network is “Virtually Private”.

Very Small Aperture Terminal-HUB (VSAT-H)

“Very Small Aperture Terminal-HUB (VSAT-HUB)” is a two-way satellite ground station with a dish antenna that is around 9.3 meters diameter. It is used for overall control of the Remote Terminal/VSAT network and manages the Hub itself.

Value-added service (VAS)

“Value-added service (VAS)” is a non-core telecommunication service. Services beyond standard voice calls and fax transmissions generally fall under VAS. In mobile industry, technologies like SMS, MMS and GPRS are usually considered value-added services.