I have a customer that has a Norstar 616 DS with DR5. They had a StarTalk hooked up to it which died about a year ago. He bought a Flash 2 with 1.7 software off of Ebay to try to cut some costs. When I hooked it up for them it didn't come up. I tested the port to make sure it was good and did the XFtest to check the feature codes and even replaced the software. Every where I've checked it's said that the KSU and voicemail are compatible. Am I missing something somewhere? The people he bought the Flash from are sending him another one but I just wanted some feed back to confirm what I found. Thanks in advance.