Except for keeping Windows stable I'm not really involved with this.

One of my law clients upgraded their phone system (I think it's an NEC)
and this was included with it. It works for a few minutes or a few
days. Sometime a week or 2, then it quits. Usually rebooting "fixes"
it. It seems pretty fragile.

Has anybody heard of this? Do you have any hints that I can do or pass
on to the phone tech. He seems reasonable.

If I get help with this I will pass on how to barbecue a Papa Murphy
pizza. Yum.