Just to be sure the extension to port assignment has not been changed, on the sets that are not working press programm 99-6 and see if the port matches the extension.
Also just for the heck of it see if an SLT functions on the ports in question, I'm beginning to suspect a wiring problem.
Programming has to be done by the port.
You are using digital sets right?
Did you check the amp. connector to make sure it's seated properly?
I would disconnect all the cross connect, field wiring if your punched direct :nono: , or pull the bridging clips, what ever you have and use 1 biscuit jack with a digital set and go down all 8 stations on that card and check them 1 by 1.
Remember, allow 3 pair per station.
MrG
