DSL - digital lines, PBX - private telephone , PSTN - a country telephone network , PTT - a country telephone network operator, VoIP - voice, VSAT - a small satellite, telecomunication manager - in charge of , globle data networking - provides international , wan - wide area , Lan - office or home , Node - a point where a connection, Local loop - Local exchange, Hub - local network, router - sent data, intelsat - a multinational satellite , cabling - Carrying signal, Lead times - time between start and complete , teledensity - dense, capasity - hold, infrastructure - basic system, global Ethernet - a number of computer ,

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