I was looking around this forum, and I found a post that said that lucent ISDN phone will work on a legend. Its this true? Does this include models such as the 8510. Likewise, if they do work, are the built-in features (like call logging) still available when connected to a legend, do the legend softkey features still work on the phones? Does called ID work if it is connected to an R7 with GS/LS MLX ID card? Sorry for all the questions.
thanks

Yes, an 8503, 8510, and 8528 ISDN can be tested on a legend system. We are a telephone repair facility, and we have been testing them for years.