Century Link is lying to you. I have had to go as far as to bring a whole new system and a T-bird out to prove the carrier was the issue. I told my client if it was my equipment at fault I would give him a new system that I brought out, All of a sudden there was a miracle Carrier found a issue in their equipment, went on for almost three weeks of them telling the client it was not them no problems on their end and it was their phone system. Has the carrier brought out a T-bird and tested to see if in 6 minutes the calls drop? if it is in fact a true legacy T-1 then there is no D channel and they cant do any testing remotely. they would need to bring out the T-bird to truly test the circuit. Do not let them show up when they want to do a test schedule a vendor meet so you can see what they are doing if anything at all. No T-bird not really testing anything. Plus they will have to take the client down to test with the T-Bird. I hate carriers sometimes

AKgreatland

just another beautiful day in the land of communications