Reset and Set Node buttons fail
From Zenitel Wiki
Problem: In an ICX-500 or ICX-Core system, when using the Reset button or the Set Node button from AlphaPro, the communication to the server fails, and you get an error message.
Solution: In Exchange & System > System, make sure that the "Node Type" is set to ICX, and not to "AlphaCom" or "AlphaCom XE".