Our system has a couple hundred phones and several dozen of them are 5330e. It seems in the last couple of months clumps of these 5330e phone started suddenly losing contrast to the point I'm beginning to wonder if there's a setting in the controller that might affect this. I don't know whether it matters but all the affected phones are on streamlines and dongles.
I did some controller maintenance night before last and after it rebooted and the offices opened in the morning, I found that there were a few more that came back with no contrast...even with the contrast setting all the way up.
A couple of them I was able to reboot them and the contrast restored, but the other are still super dim.
Jim
