Ok im im trying to connect a legend r7 to ip406v2 with pri i can get it to come up for a few mins make a few calls then it goes down. im set to 5ess legend pbx. im set 5ess and at&t in the ipo. no alarm lights on ds1 cards but can not make calls after a few mins after reseting trunks. i have looked at the avaya tech. tip #134 im setup that way , What am i missing?