Hello experts! I have setup an 1841 router with a 1DSU-T1 V2 WIC card installed and a 2811 with a 2MFT-T1/E1 VWIC card installed and I want to test my routing configuration before I send them off to their respective sites. I am trying to figure out if it is possible without all T1 carrier equipment in the middle...is there a certain kind of cable I can make to directly connect them together?