Pls anybody clear my doubts:- is the same local loop carrying voice call ,i.e. analog signal is used for carryng digital signal in ISDN implementation or different set of wiring is used to carry digital signal from customer site to CO.?
No, analog signal is not used for carrying ISDN implementation. ISDN is fully digital signaling. Yes different set of wiring is used to carry digital signal from customer site to CO.