...and just won't go away. Calls are cutting off between 4:20 and 4:30 ALMOST every day and the other day the system was down for about 15 minutes in the morning just after the office opened at 8 a.m. Using a Qwest PRI circuit. An Avaya tech told me in person yesterday that it could be a clock synchronization issue. He said that it should be remote. How can I check this in WinSPM? Don't know where to go from "Lines and Trunks." Any assistance would be greatly appreciated. Finally, the tech also suggested contacting Qwest and having them do a stress test on the circuit.