Hi,
We have 1 pair of wire in local loop but we use 2 pairs for CO to CO connection. Why? Can anyone come out with very good reasoning .
I will b greatly helped!!!!!!!
Thanks in advance.
Hi Rommel,
Thanks for ur reply. But unfortunately my doubt is why we use 4 lines instead of 2 lines in T1? What problem we may face if it is 2 line in t1 also?