System 9.115
We had a system upgrade in January of this year from a 4.3 to a 9.115. At first everything was fine. Then our PRI started dropping calls. The end of that was we discovered we had taken a lightening hit and it fried our PRIs. Our carrier fixed (?) the lines and said 'have fun'. The very next week, our lines started dropping again. Not to the extent of before, but three to four calls a day.
When I pull a dignostic on the system or a PRI card diagnostic, it shows nothing.
Any ideas about what could be going on here?