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TelephoneBasicsTelephoneBasicsClassroomDiscussionFeederDistribution-F2LocalLoopsF1TelephoneNetworkSummaryTelephoneNetworkSummary445InterfaceThelocalloopplantismadeupupmostlycopperfacilities(althoughfiberisbeginningtoappearinfeederroutes)andinterfacepointstoprovideflexibility.LocalLoopsTerminalTelephoneNetworkSummaryTelephoneNetworkSummary960942837445888LocalCallsLDCallsLocalTandemTollTandemToLD...
