Does anyone have any more on this thread? I'm helping out a friend, and they had three lines that rang on 'other' phones but not 10. Got into programming, centralized programming, and got all lines to solid green, but it has the same issue--the 'ringing' line is not selected by default, they have to push the ringing line button to answer. I re-read the avaya docs myself, and it leads you to believe that all phones should default to ringing line select, but it doesn't work....