I am building my lab for the CCIE voice exam.
I am currently working on my frame relay PSTN.
My PSTN ports are up, but I am having issues with my framerelay.
I was wondering what type of cables are needed for the frame relay ports.
i'm using rj45 cable from pstn router to the other 3 sites ( hq, br1, and br2 )
the other sites also have vwic cards.
How should i wire the cables ( crossover)?