I am not overly familiar with the Vodavi, but I have worked on a few before. This one has a model number of 5000 on the side, but I don't know where to tell the model name. The default password still works and I have a config dump. The customer added a 6th line, and I am trying to add it to the phones. They are model 3015's and currently have lines 1-5 on buttons 22-26. I am trying to use FLASH 51, PAGE B, Button #11 to assign line 6 to button 27, but everything I am reading says this is only good up to button 24. I have PDF manuals for the Triad, XTS, and Starplus, an dOne shows a 30 button "Elite" phone, but only how to program up to button 24. The dump shows 30 buttons with 27 "open".

What am I missing?