VOICE OVER IP CRASH COURSE - voiceip.com.ua

OSI Overview345Figure C-11Aerialtelephone wire(CourtesyLucentTechnologies)Figure C-12Meshednetwork; fiveusers, tencircuitspeople to call each other. Obviously, some alternative solution was greatlyneeded. That solution was the switch.The first “switches” did not arrive until 1878 with the near-disastroushiring of young boys to work the cord boards in the first central offices.John Brooks, author of Telephone: The First 100 Years, offers the following:The year of 1878 was the year of male operators, who seem to have beenan instant and memorable disaster. The lads, most of them in their lateteens, were simply too impatient and high spirited for the job, which, inview of the imperfections of the equipment and the inexperience of the