telecommunications lecture
LATA interlata or extralata
LEC local exchange carriers (own wire into premise)
IXC Inter exchange carriers
baby bells
local only had access to customers
OSI model - "physical layer is not sexy but it is golden" great quote by Dr Thomas Ho
http://www.engr.iupui.edu/cit/courses/cpt499/ecomm/topics/infrastructure/general.html
ILEC incumbent local exchange carriers
CLEC competitive local exchange carriers
ILEC leased cable to CLEC
wireless - lease infrastructure  re-brand it and sell it
telecommunications act of 1996 is law
point was to incurage competition in telecommunications
communications act of 1934
distinction of voice vs data
SONET
Tuesday, January 26, 2010
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