cayres

Ok. I have 3 site ivs ccis network. A jail, courhouse, and Admin building. We have the jail and courthouse on prta's directly connected to one another via fiber. This link is 2 prta's and 1 sc00 card; channels are 125-147 and 174-197; 148 is D-channel. About a month ago, they started having problems ext dialing across the ccis - mostly fast busy and then being dropped. Sometimes just nothing at all - just dead air. After a reset, everything would clear up. However, this only lasted a week and then progressed to only working several hours before messing up. We have been mauling over everything we can think of including swapping t1 cards, d-channel cards, only working off of 24 channels at a time, trying one channel at a time, moving to different slots, finally running a cable on the ground to bypass the fiber. The last thing finally worked and has worked for a week. But, then it messed up again just as before. This time, I only reset the cards at the jail and it fixed the problem. The question is, has anyone experienced this before. I have spent at least 4 tokens to NTAC with no help. NTAC, I feel is in a I don't want to work on IVS' mode. I would accept any ideals at this point. The Jail is the main switch with all incomming and outgoing lines, plus the ccis to the admin building - which has absolutely no problems.