Speaking of labels - one of the most time consuming things about replacing one of these is transferring the label on each and every key. I think the whole key can be pulled off rather than just the clear cover. If I recall the labels are adhered onto the key. I'm going to try taking the entire key off when I put together a replacement that amazingly we still stock.
Yes re: the WATS lines! I think this system was installed in 1983. I can't imagine seeing Grandstream or Yealink phones at the customer's site any time soon. Maybe 24 button Gen 2 phones from an Adix.
