I'm helping out a friend who installed a DSX 160. His health is failing and he asked me to look after this customer for him. I know systems, but not NEC, and have two questions.

I've got a bad SLIU board, and wonder if it is worth repairing it. Any feedback?

The customer wants to come out of Auto attendant (with a dial "0") to two different sets, one of which is the current operator. Documentation says Group Ring will not work for operator, (and it doesnt). Any ideas?

Bill