I need some help with wiring a tie trunk. Has anybody done one before. I don't have any idea on how to start. Our telco supplier terminated the 4 wire tie line as follows: whiteblue-blue-skip-whitegreen-green-skip-whiteorange-orange. How would I connect this to the card. I just need to know what pairs to connect to the telco side. I am using a t568a type rj45 modular jack to connect to the tie card. Any help would be appriecated.